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C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

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Old 02-18-2006, 12:27 AM   #1
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relay diagram for w203

does anybody have any info regarding the relays on the w203 fuse boxes? search the forum and the only info i got was the fuse diagram. i need to find out what the relays are for. thanks a lot in advance.
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Last edited by coupesleek; 02-18-2006 at 12:29 AM.
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Old 02-18-2006, 01:59 AM   #2
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For the rear SAM:

Relay Cavity

A Fuel Pump Relay
B Relay 2 Terminal 15R
C Reserve Relay 2
D Reserve Relay 1
E Rear Window Defroster (STD on BMW's, keeps hands warm while pushing)
F Relay 1 Terminal 15R
G Filler Cap Relay Polarity Reverser 1
H Filler Cap Relay Polarity Reverser 2
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Old 02-18-2006, 02:05 AM   #3
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For the front SAM

Relay Cavity

I Fanfare Horn System Relay
K Terminal 87 relay, Chassis
L Wiper speed 1 and 2 relay
M Terminal 15R relay
N SEQ {ASG} pump control relay (w/code 424 Sequentronic automated manual trans. (asg))
O Air pump relay (engines 112, 113, 271 only)
P Terminal 15 relay
Q Wiper on/off relay
R Terminal 87 relay, engine
S Starter relay
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Old 03-01-2006, 05:05 PM   #4
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Fab Relay

This is very helpfull, however, which is the fan relay? I am sure it is in the front fuse box under the hood.
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Old 03-02-2006, 01:46 AM   #5
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Which fan? Cooling system or ventilation?
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Old 03-02-2006, 04:04 PM   #6
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Auxillary fan.

The fan that cools the radiator and Condensor, it is only one in the Aut?
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Old 03-04-2006, 05:35 AM   #7
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Fan Relay

The Suction fan behind the raditor has a control module on it that runs the fan at a variable speed. Power to the control module on the fan is supplied by relay P on the front SAM. The control module looks at the pressure in the AC system, and the temperature of the coolant to determine the speed of the fan. Many people have replaced the fan control unit, the relay, and the front sam, which were perfectly good, but the pressure sensor for the AC system was faulty.
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Old 03-04-2006, 01:32 PM   #8
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doesnt your fuse chart that came which your car also show the relays?
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Old 03-18-2006, 12:24 PM   #9
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relay legend

thanks moviela. your a genius
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Old 11-28-2011, 10:25 PM   #10
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would you have actual diagram with this info?
thanks
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Old 11-28-2011, 10:33 PM   #11
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http://mbworld.org/forums/attachment...ompartment.pdf

http://mbworld.org/forums/attachment...elays-rear.pdf
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Old 11-29-2011, 12:43 AM   #12
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thanks . great
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Old 12-10-2011, 09:08 PM   #13
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Thanks

Thanks Moviela, I recently purchased a 2004 C240, and immediately had issues with no lights front or rear. A fuze diagram is present but no Relay assignment diagram.

This finding has been a joy, although it does not seem to state whether there is a relay assigned to the lighting system (front and/or rear).

Does anyone out there happen to know if there is a relay assigned to the lights or where I should strart? As for the headlight switch, I am only assuming it may be operational sonce the small lights on the switch itself light up when I turn the switch and pull out on it. I have also heard about a Head light Module.

Any help in the right direction will be appreciated, I have time to check all suggestions.

Thanks in advance......
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Old 12-11-2011, 02:26 AM   #14
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The lights are operated by the SAM's - no relays!
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Old 12-11-2011, 11:51 AM   #15
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2004 C240 No Lights

Thanks for the response Glyn, I have often utilized these forums to diagnose problems that I have but never joined. Thanks for clarifying that there is not a relay that controls the lights (front and rear). I am still a little confused on the SAMS. First, I assume there is a Front and Rear SAM? When you say the lights are controlled by the SAM's is that front and rear respectively? ALSO, the SAM itself, I assumed from reading earlier threads that the SAM was the housing which holds the fron and rear realys and fuzes? In reading the details that Moviela posted (and I printed) I do not see anything that refrence lights (except for fuzes, 50, 62, and 63 which all state Light Module). I have heard about a Headlight Module also, that I think is mounted in the front left of the car.

Sorry for being lengthy but I purchased this car recently "as is" for the wife and it looks good in my driveway but she cannot drive it in the evenings yet due to not having lights front or rear, or instrument panel.
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Old 12-11-2011, 03:26 PM   #16
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If you have all lights out it is most likely the SAM's = Signal Acquisition & Activation Module. They operate off of the respective CANBUS so that you don't have thousands of wires running all over the car.

You have 3 fuse points in a W203. Driver's side of dash. In the front SAM & in the rear SAM. Your fuse etc. diagram s/b in the driver's side of dash fusebox.

You have one SAM in the rear engine compartment opposite side to the battery under a little water cover with twist fasteners & then under a cover with lever snap fasteners. The rear SAM is in the trunk on the LHS under a cover in the trunk lining.

Light activation is by the SAM's themselves when they receive a signal on the CANBUS. They are electronically protected - no fuses.

I hope you don't have blown SAM's as they are expensive. Lets hope they just need reprogramming or similar.

Click the image to open in full size.

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Last edited by Glyn M Ruck; 12-11-2011 at 06:48 PM.
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Old 12-11-2011, 05:30 PM   #17
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C240 No Lights

Glyn,

Thanks very much for your time on this issue.

I do have a follow-up question. How can the SAM be blown if other functionalities are operational within that SAM?

The only issues I am having are the lights.

Do you know about the Head Light Module? I am thinking that maybe the issue if it is not fuze 50 (which I have not checked yet).

Here is a picture of a Haedlight Module I pulled from the Internet:
Attached Files
File Type: pdf Headlight Module.pdf (298.8 KB, 1482 views)
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Old 12-11-2011, 07:03 PM   #18
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Yes - You have ballasts/ignitors for the HID's & Bi-Xenons if fitted. The chances of them all failing at the same time are close to zero & they only effect the headlights. I can understand one light out. Do any lights work on front or rear of the car including flashers, parking lights, number plate light on rear etc?

If everything is off it is typical SAM problem either blown or corrupted by something. You would need a Star DAS to reprogram the SAM's if corrupted i.e. trip to the dealer or a rare Indy with a Star. The SAM's can blow partially.

Is the car storing any codes? You need to get hold of an OBDII scanner & check for codes & post them here. Autozone or similar can read for you if you don't want to buy a scanner.
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Old 12-11-2011, 07:58 PM   #19
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2004 C240 No Lights

Glyn,

I borrowed a scanner and tested the vehicle. It does not have any stored codes. The SRS Light is on and it is showing 1 malfunction which is the SRS Light. I accidently tripped this when I was randomly checking fuses to see if any were blown. I have since obtained a test lamp and now check the fuses with the Test Lamp.

As for the Lights, I have both directional lights, brake lights, interior dome lights, 4 way flashers, and the bright lights "if I hold back on the Wiper Control".

I do not have front low or high beam, rear lights, or Instrument Panel back lights.

As for the Head Light Switch, when I turn and pull it, the small lights on the switch (2) illuminate but no lights in front or rear of the car, or in the instrument panel. Aree you saying that there is more than one of the Ballist installed? I was thinking there was only one of the Modules that I sent earlier, if there are more do you know where they are located? I went into a local shop on Friday, and they were not clear (not a MB shop). From the computer they pulled up one located in the front passenger side of the car, but they also saw literature stating left and right.

As for the SRS Light, I know there is not a fault with it since I caused it by pulling the fuse, do you think diconnecting the battery for some time then re-connecting it will reset?

Thanks very much.
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Old 12-12-2011, 06:21 AM   #20
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The ballast/ignitors are mounted inside the front light units on most models. There is a repair kit available to replace ignitors without stripping the lights which means heating the glue that holds on the lens. I have the kit fitment method if you end up needing it.

There is something wrong with the SAM's. They are not able to talk back to the diagnostics over the CANBUS at present. The car should be telling you by light which ones are out and it is not. At the very least something has become corrupted through jump starting, or disconnecting a battery or similar.

I'm afraid you need to get this car onto a Star DAS & hope that reprogramming the SAM's fixes this problem. Does the car have BiX or just halogens?

Click the image to open in full size.

Click the image to open in full size.

10 A 203 820 01 61 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC [010]
001
10 A 203 820 31 61 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC
Replaced_By: A 203 820 11 59
+001 A 203 826 01 91 [016], [045]
001
10 A 203 820 11 59 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC [016]
001
10 A 203 820 02 61 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC [010]
001
10 A 203 820 32 61 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC
Replaced_By: A 203 820 12 59
+001 A 203 826 01 91 [016], [045]
001
10 A 203 820 12 59 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC [016]
001
10 A 203 820 11 61 LIGHTING UNIT
LEFT XENON HEADLAMPS, RIGHT-HAND TRAFFIC Code: 612
001
10 A 203 820 12 61 LIGHTING UNIT
RIGHT XENON HEADLAMPS, RIGHT-HAND TRAFFIC Code: 612
001
10 A 203 820 07 61 LIGHTING UNIT
LEFT, LEFT HAND TRAFFIC [010]
Code: 613
001
10 A 203 820 33 61 LIGHTING UNIT
LEFT, LEFT - HAND TRAFFIC
Replaced_By: A 203 820 13 59
+001 A 203 826 01 91 [016], [046]
Code: 613
001
10 A 203 820 13 59 LIGHTING UNIT
LEFT, LEFT HAND TRAFFIC [047]
Code: 613
001
10 A 203 820 08 61 LIGHTING UNIT
RIGHT, LEFT-HAND TRAFFIC [010]
Code: 613
001
10 A 203 820 34 61 LIGHTING UNIT
RIGHT, LEFT-HAND TRAFFIC
Replaced_By: A 203 820 14 59
+001 A 203 826 01 91 [016], [046]
Code: 613
001
10 A 203 820 14 59 LIGHTING UNIT
RIGHT, LEFT-HAND TRAFFIC [047]
Code: 613
001
10 A 203 820 37 61 LIGHTING UNIT
LEFT, BI-XENON RIGHT-SIDE TRAFFIC
Replaced_By: A 203 820 17 59 [045]
Code: 614
001
10 A 203 820 17 59 LIGHTING UNIT
LEFT, BI-XENON RIGHT-SIDE TRAFFIC [047], [048]
Code: 614
001
10 A 203 820 35 59 LIGHTING UNIT
LEFT, BI-XENON RIGHT-SIDE TRAFFIC [049]
Code: 614
001
10 A 203 820 38 61 LIGHTING UNIT
RIGHT, BI-XENON RIGHT-SIDE TRAFFIC
Replaced_By: A 203 820 18 59 [045]
Code: 614
001
10 A 203 820 18 59 LIGHTING UNIT
BI-XENON, RIGHT, RIGHT-HAND TRAFFIC [047], [048]
Code: 614
001
10 A 203 820 36 59 LIGHTING UNIT
BI-XENON, RIGHT, RIGHT-HAND TRAFFIC [049]
Code: 614
001
10 A 203 820 13 61 LIGHTING UNIT
LEFT, LEFT HAND TRAFFIC Code: 617
001
10 A 203 820 14 61 LIGHTING UNIT
RIGHT, LEFT-HAND TRAFFIC Code: 617
001
10 A 203 820 39 61 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, LEFT
Replaced_By: A 203 820 19 59
+001 A 203 826 01 91 [045]
Code: 618
001
10 A 203 820 19 59 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, LEFT [047], [050]
Code: 618
001
10 A 203 820 37 59 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, LEFT [049]
Code: 618
001
10 A 203 820 40 61 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, RIGHT
Replaced_By: A 203 820 20 59
+001 A 203 826 02 91 [045]
Code: 618
001
10 A 203 820 20 59 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, RIGHT [047], [048]
Code: 618
001
10 A 203 820 38 59 LIGHTING UNIT
BI-XENON ASYMMETRICAL LH TRAFFIC, RIGHT [049]
Code: 618
001
10 A 203 820 09 61 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC [010]
Code: 494
001
10 A 203 820 35 61 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC
Replaced_By: A 203 820 15 59
+001 A 203 826 01 91 [016], [045]
Code: 494
001
10 A 203 820 15 59 LIGHTING UNIT
LEFT, RIGHT-HAND TRAFFIC [047]
Code: 494
001
10 A 203 820 10 61 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC [010]
Code: 494
001
10 A 203 820 36 61 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC
Replaced_By: A 203 820 16 59
+001 A 203 826 01 91 [016], [045]
Code: 494
001
10 A 203 820 16 59 LIGHTING UNIT
RIGHT, RIGHT-HAND TRAFFIC [047]
Code: 494
001
10 A 203 820 15 61 LIGHTING UNIT
HEADLAMP-XENON, LEFT Code: 494+612
001
10 A 203 820 16 61 LIGHTING UNIT
HEADLAMP-XENON, RIGHT Code: 494+612
001
10 A 203 820 41 61 LIGHTING UNIT
LEFT, BI-XENON RIGHT-SIDE TRAFFIC
Replaced_By: A 203 820 21 59 [045]
Code: 494+614
001
10 A 203 820 21 59 LIGHTING UNIT
BI-XENON, LEFT, RIGHT-HAND TRAFFIC [047], [048]
Code: 494+614
001
10 A 203 820 39 59 LIGHTING UNIT
BI-XENON, LEFT, RIGHT-HAND TRAFFIC [049]
Code: 494+614
001
10 A 203 820 42 61 LIGHTING UNIT
RIGHT, BI-XENON RIGHT-SIDE TRAFFIC
Replaced_By: A 203 820 22 59 [045]
Code: 494+614
001
10 A 203 820 22 59 LIGHTING UNIT
BI-XENON, RIGHT, RIGHT-HAND TRAFFIC [047], [048]
Code: 494+614
001
10 A 203 820 40 59 LIGHTING UNIT
BI-XENON, RIGHT, RIGHT-HAND TRAFFIC [049]
Code: 494+614
001
20 A 140 820 05 49 .CAP
HEADLAMP 002
30 A 203 820 01 49 .CAP
HIGH BEAM HEADLAMP 002
40 A 203 820 25 26 .CONTROL UNIT
HEADLAMP-XENON, LEFT Code: 612/617
001
40 A 203 820 25 26 .CONTROL UNIT
HEADLAMP-XENON, RIGHT Code: 612/617
001
40 A 203 820 16 85 .CONTROL UNIT
BI-XENON
Replaced_By: A 203 820 88 85 [005], [048]
Code: 614
002
40 A 203 820 16 85 .CONTROL UNIT
BI-XENON
Replaced_By: A 203 820 88 85 [005], [048]
Code: 618
002
40 A 203 820 88 85 .CONTROL UNIT
BI-XENON Code: 614
002
40 A 203 820 88 85 .CONTROL UNIT
BI-XENON Code: 618
002
45 A 220 826 01 89 .CLAMPING RING
IGNITION MODULE FOR XENON BURNER
FOR ZG 4.1 [409]
Code: 614/617/618
001
60 A 129 800 24 75 .ELEMENT
LIGHT RANGE ADJUSTER LEFT Code: -494
001
60 A 129 800 24 75 .ELEMENT
LIGHT RANGE ADJUSTER RIGHT Code: -494
001
70 N 400809 9000007 .BULB
LEFT-LOW-BEAM
H7 12V-55W 001
70 N 400809 9000007 .BULB
MAIN BEAM LEFT
H7 12V-55W 001
70 N 400809 9000007 .BULB
RIGHT LOW BEAM
H7 12V-55W 001
70 N 400809 9000007 .BULB
MAIN BEAM LEFT
H7 12V-55W;H7 Code: 612/617/614/618
001
70 N 400809 9000007 .BULB
MAIN BEAM RIGHT
H7 12V-55W 001
70 N 400809 9000007 .BULB
MAIN BEAM RIGHT
H7 12V-55W;H7 55W-12V Code: 612/617/614/618
001
80 N 910139 9000000 .BURNER XENON
LEFT-LOW-BEAM
D2R 12V-35W Code: 612/617
001
80 N 910139 9000000 .BURNER XENON
LOW BEAM RIGHT
D2R 12V-35W Code: 612/617
001
80 N 910139 9000001 .BURNER XENON
LEFT
D2S 12V-35W Code: 614/618
001
80 N 910139 9000001 .BURNER XENON
RIGHT
D2S 12V-35W Code: 614/618
001
90 N 600000 0000000 .BULB
SIDE MARKER AND CLEARANCE LIGHTS,LEFT
12.8V-3CP 001
90 N 600000 0000000 .BULB
SIDE MARKER AND CLEARANCE LIGHTS,RIGHT
12.8V-3CP 001
100 N 400809 9000000 .BULB
LEFT BLINKER LIGHT
12V-21W 001
100 N 400809 9000000 .BULB
RIGHT BLINKER LIGHT
12V-21W 001
100 N 600000 0000007 .BULB
LEFT BLINKER LIGHT
12.8V-30CP Code: 494+614
001
100 N 600000 0000007 .BULB
RIGHT BLINKER LIGHT
12.8V-30CP Code: 494+614
001
100 N 000000 0002525 .BULB
LEFT BLINKER LIGHT
12V-21W Code: 614/618
001
100 N 000000 0002525 .BULB
RIGHT BLINKER LIGHT
12V-21W Code: 614/618
001
110 A 001 826 19 82 .LAMP SOCKET
LEFT BLINKER LIGHT 001
110 A 001 826 19 82 .LAMP SOCKET
RIGHT BLINKER LIGHT 001
110 A 001 826 34 82 .LAMP SOCKET
LEFT BLINKER LIGHT Code: 494+614
001
110 A 001 826 34 82 .LAMP SOCKET
RIGHT BLINKER LIGHT Code: 494+614
001
120 A 203 826 01 91 .SEALING RING
LEFT 001
120 A 203 826 02 91 .SEALING RING
RIGHT 001
130 A 004 994 12 45 SHEET METAL NUT
LAMP UNIT TO FRONT MODULE INSIDE
M5 002
130 A 004 994 12 45 SHEET METAL NUT
LAMP UNIT TO FRONT MODULE TOP
M5 001
130 A 004 994 12 45 SHEET METAL NUT
LAMP UNIT TO FRONT MODULE TOP
M5 001
140 N 910105 5005007 SCREW
LAMP UNIT TO FRONT MODULE INSIDE
M5X45 002
140 N 910105 5005007 SCREW
LAMP UNIT TO FRONT MODULE OUTSIDE
M5X45 002
145 N 304017 7005008 SCREW
LAMP UNIT TO FRONT MODULE TOP
M5X30 001
147 N 000433 3005304 WASHER
LAMP UNIT TO FRONT MODULE TOP
5MM 001
150 N 304017 7005008 SCREW
LAMP UNIT TO FRONT MODULE TOP
M5X30 001
160 A 203 826 01 82 LAMP SOCKET
REPAIR SOLUTION FOR TURN SIGNAL IND. Code: -494
001
160 A 203 826 02 82 LAMP SOCKET
REPAIR SOLUTION FOR TURN SIGNAL IND. Code: 494
001
200 A 203 820 24 26 CONTROL UNIT
LIGHT SENSOR [051]
Code: -055-804/-055-345/-055-345-804
001
200 A 203 820 65 85 CONTROL UNIT
LIGHT SENSOR [052], [051]
Code: -345+055
001
200 A 203 820 65 85 CONTROL UNIT
LIGHT SENSOR [053]
Code: -345
001
200 A 209 820 24 26 CONTROL UNIT
RAIN AND LIGHT SENSOR
Replaced_By: A 209 820 31 26 [022]
Code: 345
001
200 A 209 820 31 26 CONTROL UNIT
RAIN AND LIGHT SENSOR
Replaced_By: A 221 870 28 26 [022]
Code: 345
001
200 A 221 870 28 26 CONTROL UNIT
RAIN AND LIGHT SENSOR
Replaced_By: A 221 870 88 26 [022], [005], [023]
Code: 345
001
200 A 221 870 88 26 CONTROL UNIT
RAIN AND LIGHT SENSOR
Replaced_By: A 221 870 00 92 [022], [005], [024]
Code: 345
001
200 A 221 870 00 92 CONTROL UNIT
RAIN AND LIGHT SENSOR [022]
Code: 345
001
200 A 203 820 24 26 CONTROL UNIT
LIGHT SENSOR Code: -345+691
001
200 A 203 820 52 26 CONTROL UNIT
AUTOMATIC DRIVING LIGHT CONTROL Code: -345+693
001
210 A 203 822 01 35 COVER
CONTROL UNIT [012], [907]
001
210 A 203 822 03 35 COVER
CONTROL UNIT [034], [012], [907]
Code: 804
001
210 A 203 822 03 35 COVER
CONTROL UNIT [034], [012], [908]
Code: 804
001
210 A 203 822 03 35 COVER
CONTROL UNIT [013], [907]
001
210 A 203 822 03 35 COVER
CONTROL UNIT [013], [908]
001
250 A 203 820 31 14 HOLDER
LEFT CARRIER REPAIR KIT 001
250 A 203 820 32 14 HOLDER
RIGHT CARRIER REPAIR KIT 001
300 A 203 826 02 77 FOIL
TOURIST SOLUTION FOR LEFT-HAND DRIVEVEHICLE, FOR LEFT-HAND TRAFFIC [010]
001
300 A 203 826 03 77 FOIL
TOURIST SOLUTION FOR RIGHT-HAND DRIVEVEHICLE, FOR RIGHT-HAND TRAFFIC [010]
001
300 A 203 826 04 77 FOIL (XENON)
TOURIST SOLUTION FOR LEFT-HAND DRIVEVEHICLE, FOR LEFT-HAND TRAFFIC [010]
001
300 A 203 826 05 77 FOIL (XENON)
TOURIST SOLUTION FOR RIGHT-HAND DRIVEVEHICLE, FOR RIGHT-HAND TRAFFIC
XENON [010]
001
310 A 203 826 07 77 FOIL
TOURIST SOLUTION FOR LEFT-HAND DRIVEVEHICLE, FOR LEFT-HAND TRAFFIC [016]
001
310 A 203 826 08 77 FOIL
TOURIST SOLUTION FOR RIGHT-HAND DRIVEVEHICLE, FOR RIGHT-HAND TRAFFIC [016]
001
350 A 215 820 05 56 FOGLAMP
LEFT [010]
001
350 A 203 820 17 56 FOGLAMP
LEFT [016], [035]
001
350 A 203 820 31 56 FOGLAMP
LEFT [056]
Code: -804
001
350 A 215 820 06 56 FOGLAMP
RIGHT [010]
001
350 A 203 820 18 56 FOGLAMP
RIGHT [016], [035]
001
350 A 203 820 32 56 FOGLAMP
RIGHT [056]
Code: -804
001
350 A 215 820 07 56 FOGLAMP
LEFT [002]
Code: 772
001
350 A 215 820 07 56 FOGLAMP
LEFT [002]
Code: 614+772
001
350 A 215 820 07 56 FOGLAMP
LEFT [002]
Code: 618+772
001
350 A 230 820 03 56 FOGLAMP
LEFT [057], [002]
Code: 772+805
001
350 A 230 820 03 56 FOGLAMP
LEFT [057], [002]
Code: 614+772+805
001
350 A 230 820 03 56 FOGLAMP
LEFT [057], [002]
Code: 618+772+805
001
350 A 230 820 03 56 FOGLAMP
LEFT [004]
Code: 772
001
350 A 230 820 03 56 FOGLAMP
LEFT [004]
Code: 614+772
001
350 A 230 820 03 56 FOGLAMP
LEFT [004]
Code: 618+772
001
350 A 215 820 08 56 FOGLAMP
RIGHT [002]
Code: 772
001
350 A 215 820 08 56 FOGLAMP
RIGHT [002]
Code: 614+772
001
350 A 215 820 08 56 FOGLAMP
RIGHT [002]
Code: 618+772
001
350 A 230 820 04 56 FOGLAMP
RIGHT [057], [002]
Code: 772+805
001
350 A 230 820 04 56 FOGLAMP
RIGHT [057], [002]
Code: 614+772+805
001
350 A 230 820 04 56 FOGLAMP
RIGHT [057], [002]
Code: 618+772+805
001
350 A 230 820 04 56 FOGLAMP
RIGHT [004]
Code: 772
001
350 A 230 820 04 56 FOGLAMP
RIGHT [004]
Code: 614+772
001
350 A 230 820 04 56 FOGLAMP
RIGHT [004]
Code: 618+772
001
350 A 203 820 11 56 FOGLAMP
LEFT [010]
Code: 614/618
001
350 A 203 820 12 56 FOGLAMP
RIGHT [010]
Code: 614/618
001
350 A 203 820 19 56 FOGLAMP
LEFT [011]
Code: 614+619/618+619
001
350 A 203 820 20 56 FOGLAMP
RIGHT [011]
Code: 614+619/618+619
001
360 A 215 826 01 90 .LENS
LEFT [010]
Code: -772
001
360 A 215 826 02 90 .LENS
RIGHT [010]
Code: -772
001
360 A 203 826 01 90 .LENS
LEFT [010]
Code: -772+614/-772+618
001
360 A 203 826 01 90 .LENS
LEFT [016]
Code: -772
001
360 A 203 826 02 90 .LENS
RIGHT [010]
Code: -772+614/-772+618
001
360 A 203 826 02 90 .LENS
RIGHT [016]
Code: -772
001
370 A 215 826 01 91 .SEALING RING
LEFT 001
370 A 215 826 01 91 .SEALING RING
RIGHT 001
370 A 215 826 01 91 .SEALING RING
LEFT Code: 772
001
370 A 215 826 01 91 .SEALING RING
RIGHT Code: 772
001
380 A 140 826 02 84 .SPRING
LEFT 003
380 A 140 826 02 84 .SPRING
RIGHT 003
390 N 000000 0000069 .BULB
FOGLAMP
HB4 12V-51W 002
395 N 400809 9000007 .BULB
FOGLAMP
H7 12V-55W Code: 614+619/618+619
001
410 N 000000 0000548 SHEET METAL SCREW
INTERIOR PART TO PANELLING
4.8X16 004
410 N 914031 1004206 SHEET METAL SCREW
ATTACHMENT FOG LAMP
M8X16 [002]
004
410 N 910105 5005000 SCREW
ATTACHMENT FOG LAMP
M5X12 [003], [002]
Code: 805
006
410 N 910105 5005000 SCREW
ATTACHMENT FOG LAMP
M5X12 [004]
006
410 N 910105 5005000 SCREW
ATTACHMENT FOG LAMP
M5X12 004
420 A 004 994 52 45 FUSE
LEFT Code: 772
002
420 A 004 994 52 45 FUSE
RIGHT 002
420 A 001 990 75 91 SHEET METAL NUT
ATTACHMENT FOG LAMP Code: -772
004
420 A 004 994 12 45 SHEET METAL NUT
ATTACHMENT FOG LAMP
M5 004
440 A 203 885 00 56 TAKE-UP DEVICE
FOGLAMP Code: 772
004
470 A 203 545 57 28 PLUG Code: 614/618
001
Attached Thumbnails
relay diagram for w203-lights.gif  
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Old 12-12-2011, 10:43 PM   #21
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Off the top of me knoggen I think it might be the headlight switch is unplugged or mechanically broken. The switch and mirror control is on the same connector. It is held in the dash by a single screw that goes straight up from the bottom. Pull it out and see if the connector is well seated and clean. If a new switch is needed, be sure to order by ViN, as the names of the colours make no sense. The interior of my car is beige, but in the catalog it is "pepple."

The switch does not actually control the lamps. Field Effect Transistors in the SAM do that. The switch uses the CANbus to alert the processor in the SAM that illumination is requested. The SAM also monitors the current flowing to each lamp, and will send a "lamp out" message if the circuit is open, and will turn off the FET if the current is out of the correct range for the lamp in question.

Hopefully it is the switch or the connector. The SAM is about $1000. whilst the switch is $100.
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Old 12-13-2011, 03:33 AM   #22
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Join Date: Dec 2011
Posts: 11
Drives: C240, S500
2004 C240 No Lights

Thanks Guys,

I am hoping it is the switch or something not too expensive. I will look at the switch tomorrow. "I am told" the lights worked prior to my purchase of the vehicle. I saw pictures with the Instrument Panel Illuminated.
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Old 12-13-2011, 04:53 AM   #23
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Quote:
Originally Posted by Moviela View Post
Off the top of me knoggen I think it might be the headlight switch is unplugged or mechanically broken. The switch and mirror control is on the same connector. It is held in the dash by a single screw that goes straight up from the bottom. Pull it out and see if the connector is well seated and clean. If a new switch is needed, be sure to order by ViN, as the names of the colours make no sense. The interior of my car is beige, but in the catalog it is "pepple."

The switch does not actually control the lamps. Field Effect Transistors in the SAM do that. The switch uses the CANbus to alert the processor in the SAM that illumination is requested. The SAM also monitors the current flowing to each lamp, and will send a "lamp out" message if the circuit is open, and will turn off the FET if the current is out of the correct range for the lamp in question.

Hopefully it is the switch or the connector. The SAM is about $1000. whilst the switch is $100.
Movie - good point! It is certainly worth a try & easy. An extra brain on the matter always helps! The switch connector could be dislodged.

BTW - regarding your colour - it's "pebble beige" in ROW as opposed to "savanna beige" & "sahara beige" etc. The US changes the names of some colours at random e.g. Capri Blue (US) = Tanzanite Blue in ROW - even Canada. I think your colour upholstery was called "almond" or similar in the US. The EPC sticks to the international nomenclature apart from badging in recent times.
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Last edited by Glyn M Ruck; 12-13-2011 at 05:03 AM.
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Old 12-14-2011, 11:26 PM   #24
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Join Date: Dec 2011
Posts: 11
Drives: C240, S500
2004 C240 No Lights

I think the switch may be the issue as well, but not 100% certain. I pulled the switch out of its housing on the dash. Prior to disconnecting the switch I noticed below the swirches behavior:

a. There are 3 possible position selections to the right of the "0"
position which is at the top of the switch.
b. When I turn the switch to the right in any of the 3 selections no lights
illuminate on the sitch to indicate that that function is working (Auto,
Park Lights, Head lights).
C. Conversley, when I do the same on my S500 the internal switch lights
illuminate in all 3 positions.
d. The only time the 2 small lights on the switch illuminate is when I pull
the switch out in the 2 positions which I think are for (Bright, and Fog
Lights).
e. Given that I am not 100% sure, I will search out someone (a friend I
hope that has the same type switch in thier car and ask to plug mine
up to see if it works or not in their car.
f. Please advise if that is a bad idea, or another way to check my switch
functionality before buying a new one. I think these switches are in
excess of $400 dollars US.

Thanks Moviela and Glyn and all others for assisting me, I am not home free yet but feel better about this.
Quote:
Originally Posted by Moviela View Post
Off the top of me knoggen I think it might be the headlight switch is unplugged or mechanically broken. The switch and mirror control is on the same connector. It is held in the dash by a single screw that goes straight up from the bottom. Pull it out and see if the connector is well seated and clean. If a new switch is needed, be sure to order by ViN, as the names of the colours make no sense. The interior of my car is beige, but in the catalog it is "pepple."

The switch does not actually control the lamps. Field Effect Transistors in the SAM do that. The switch uses the CANbus to alert the processor in the SAM that illumination is requested. The SAM also monitors the current flowing to each lamp, and will send a "lamp out" message if the circuit is open, and will turn off the FET if the current is out of the correct range for the lamp in question.

Hopefully it is the switch or the connector. The SAM is about $1000. whilst the switch is $100.
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Old 12-15-2011, 05:33 AM   #25
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The C240 switch only lights the position markings in the two fog light positions. The 240 did not light a lot of dash functions such as the HVAC vent rollers. Only the C320 did. So this is not a measure of an operating switch I'm afraid. Sorry to be the bringer of bad news but I've just sold my C240 after 8 years of faultless service.
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Old 12-15-2011, 05:33 AM
 
 
 
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