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MBWorld.org Forums
Mercedes-Benz Sedans
C-Class (W203)
C-Class (W203)
2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe
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C-Class (W203)
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Official C-Class Picture Thread
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Accord
on Jan 31, 2002
Jun 6, 2026
12:57 PM
by
Gersssi
7,020
4,497,100
Sticky
Common suspension noises and solutions
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TruTaing
on Aug 17, 2010
Mar 7, 2026
12:27 PM
by
SilverSound4
345
715,225
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M271 2003-2005 C230 guys go to the dealer now free work/recall
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linkmustang
on Mar 10, 2008
Nov 6, 2025
01:06 PM
by
Euroslammed
300
361,617
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Owners Manuals, Service Manuals, Etc.
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Glyn M Ruck
on Oct 30, 2010
Jan 11, 2025
11:56 AM
by
Handygoober
47
243,529
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List of faults that occur after disconnecting battery...
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MB-BOB
on Jul 27, 2005
Apr 18, 2024
04:32 PM
by
tclark
199
994,625
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Noisy Air Conditioner ?? Stepper Motor Replacement / Clicking & Hissing
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TechSuperstar
on Jan 9, 2007
Oct 2, 2023
09:22 PM
by
slammer111
659
904,621
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W203 Technical Service Bulletins
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vraa
on Oct 3, 2005
Aug 27, 2020
09:46 AM
by
StevenVN
86
319,222
Sticky
Inductively energised key, handshake & start process
Glyn M Ruck
on Aug 21, 2011
Jun 27, 2019
02:39 PM
by
Jhicks56
13
76,115
Sticky
Latest Guide to Resetting the Service Indicator - most models
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Glyn M Ruck
on Jan 5, 2010
Feb 27, 2019
03:12 AM
by
hEEk
74
344,837
Sticky
Definitive Approved Engine Oil Requirements - USA
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Glyn M Ruck
on Dec 11, 2008
Oct 23, 2018
11:56 AM
by
Audi Junkie
110
246,019
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MJ50's W203 Mod Fever (OEM Retrofits)
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MJ50
on Jan 5, 2004
Sep 12, 2017
01:26 PM
by
MJ50
1,412
612,102
Sticky
MUST READ - To All W203 Owners/posters
drexappeal
on Jan 31, 2008
Jan 31, 2008
01:47 PM
by
drexappeal
0
89,939
Sticky
AFTERMARKET & OEM MODIFICATIONS / DIY - FAQ's
amdeutsch
on May 21, 2005
Feb 12, 2007
03:22 PM
by
drexappeal
1
269,907
Normal Threads
MB OEM Supercharger Bypass Valve
bwco
on Apr 22, 2007
Today
05:38 AM
by
mikekilo
12
27,532
Driver side door won't latch closed
C230 Sport Coup
on Jun 8, 2026
Today
02:02 AM
by
C230 Sport Coup
2
140
2002 C230K SC - Dead
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TheRotaryFox
on May 13, 2024
Today
01:46 AM
by
C230 Sport Coup
145
11,851
Replace alternator, anything else?
nsc230k
on Jun 10, 2026
Today
01:31 AM
by
C230 Sport Coup
2
60
Bigger injector installation on m111 engine
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ntinosath
on Dec 4, 2025
Jun 11, 2026
05:38 AM
by
112233
52
3,750
Early '01 Fuel Sender Spec Resistance
aerobat
on Apr 29, 2015
Jun 11, 2026
12:41 AM
by
S@v10r16y
4
5,952
Weird noise like a cd rubbing
CyberSerpent
on Jun 8, 2026
Jun 11, 2026
12:06 AM
by
smgak
9
146
Basnk 1 sensor 1 nightmare
Brian McL
on Jun 9, 2026
Jun 10, 2026
05:53 PM
by
Brian McL
1
64
How to get hood open
dpop1013
on Jun 10, 2026
Jun 10, 2026
04:27 PM
by
smgak
1
73
Mercedes C240 4matic wagon
Iam Bingood
on Jun 7, 2026
Jun 9, 2026
07:41 PM
by
Iam Bingood
7
188
Check engine light appears after replacing alternator
ggharek
on Jun 8, 2026
Jun 8, 2026
11:07 PM
by
TimC300
4
113
Airconditon
2bertz
on Jun 13, 2025
Jun 7, 2026
01:20 PM
by
itsmeanthony
9
515
Help with doing a smoke test
Nikitag
on May 24, 2026
Jun 6, 2026
04:56 PM
by
Nikitag
5
266
How many miles or kms have you clocked your W203 ?
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boytoys
on Sep 5, 2005
Jun 6, 2026
01:02 PM
by
Gersssi
621
147,901
M271 (1.8L) Supercharger Intake Resonator (baffled muffler) removal
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Ogpogo
on Jul 30, 2007
Jun 6, 2026
01:25 AM
by
senzzz
170
272,580
A/C suddenly warm
itsmeanthony
on Jun 4, 2026
Jun 6, 2026
12:53 AM
by
smgak
5
151
Thottle body porting
112233
on Jun 5, 2026
Jun 5, 2026
01:57 PM
by
112233
0
88
Intake manifold CORRECT torque specs. please
Brian McL
on Jun 2, 2026
Jun 5, 2026
01:37 PM
by
Brian McL
5
189
07 C230 rough start w cold engine
Skiehlmeie
on Apr 13, 2026
Jun 3, 2026
08:47 AM
by
Skiehlmeie
2
215
DIY: M271 Throttle Body Cleaning/Getting to and Replacing your TB
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1
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nlpamg
on Mar 15, 2009
Jun 1, 2026
03:43 AM
by
smgak
43
77,379
Stage 2 tune for 2002 c230 kompressor m111 2.3l
2002 m111 c230
on May 30, 2026
May 31, 2026
01:36 PM
by
ziigen
1
149
Stage 2 tune for 2002 c230 kompressor m111
2002 m111 c230
on May 29, 2026
May 30, 2026
10:34 AM
by
MJ50
1
198
Accidently pushed wheel bearing crooked
Dokus
on May 29, 2026
May 30, 2026
02:51 AM
by
Dokus
2
177
Sedan sunroof air deflector won't deploy
Spooky55
on Sep 6, 2024
May 28, 2026
02:53 PM
by
pfrank
3
690
The " own more than one CL203 club"
C230 Sport Coup
on Jul 7, 2025
May 25, 2026
08:57 PM
by
C230 Sport Coup
8
616
HOW TO: Fix Cloudy / Yellowed Headlights
KILLERHERTZ
on May 24, 2026
May 24, 2026
07:12 AM
by
KILLERHERTZ
0
140
Poll
2005 CLK 500 Cold Air Intake
Magnesium77
on May 22, 2026
May 22, 2026
11:29 PM
by
smgak
1
100
The Forgotten AMG: "CL203 XX AMG" 3-Year Journey to Fulfillment❗️
XX_Project
on Feb 6, 2026
May 22, 2026
04:46 AM
by
C55.vick
5
1,073
Rear SAM
scott414
on May 4, 2021
May 20, 2026
02:11 PM
by
naesm
2
2,028
Another no cranck no start
(
1
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amcink
on Dec 15, 2014
May 20, 2026
01:15 AM
by
smgak
57
118,284
Searching for information regarding catalytic converter delete
an6dk
on May 12, 2026
May 19, 2026
08:02 PM
by
MBENZTECH
6
314
cl203 no speedometer/ABS/ESP/BAS
burgerbreakfast
on May 10, 2024
May 18, 2026
03:48 PM
by
C230 Sport Coup
10
1,986
Vacuum pump
Kwameskillz
on May 11, 2026
May 13, 2026
04:51 AM
by
C230 Sport Coup
2
280
Mercerdes c320 w203 m112 misfire cyl 6
Juli Chepandov
on Nov 14, 2024
May 12, 2026
06:44 AM
by
b05_uli
9
2,207
questions about headlights, inter coolers
an6dk
on May 9, 2026
May 11, 2026
03:47 AM
by
an6dk
9
337
HELP - "Restraint System Visit Workshop! SRS"
TTR
on Feb 25, 2013
May 9, 2026
07:12 AM
by
SilverSound4
13
97,422
Coolant leak by oil cap
Nicko559
on Sep 13, 2025
May 9, 2026
07:06 AM
by
SilverSound4
6
776
Fuel door won't open
C230 Sport Coup
on May 2, 2013
May 9, 2026
07:04 AM
by
SilverSound4
14
39,948
W203 Faulty Headlamp / Need Opinion on Ballast
simaosrcm
on Jan 24, 2026
May 9, 2026
06:49 AM
by
SilverSound4
2
667
Looking to buy a C230 Coupe, Headlight damage question, and what other problems?
JMon
on Nov 16, 2007
May 9, 2026
05:43 AM
by
SilverSound4
13
1,861
Any Cold Air Intake for C-class???
(
1
2
)
S_kLaSse
on Jul 15, 2004
May 9, 2026
05:35 AM
by
SilverSound4
35
36,376
New owner m111k
TOMAS PF
on May 4, 2026
May 6, 2026
04:16 PM
by
C230 Sport Coup
2
172
Parts are Discontinued.
chicago_fog
on May 5, 2026
May 5, 2026
06:36 PM
by
chicago_fog
2
204
Unknown obd code
the_edge123
on May 1, 2026
May 2, 2026
02:43 PM
by
C230 Sport Coup
2
140
We need an intake manifold...but which one ?
Brian McL
on Apr 26, 2026
Apr 26, 2026
09:21 PM
by
smgak
2
173
How many C coupes are still here?
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C230 Sport Coup
on Apr 2, 2020
Apr 23, 2026
01:20 PM
by
C230 Sport Coup
122
22,945
Intermittent No-Crank/No-Start W203 M271 - TCM Gear Mismatch? (Terminal 50 stays OFF)
letiridumed
on Feb 15, 2026
Apr 19, 2026
11:03 AM
by
letiridumed
1
265
M271 chain tensioner
Rcb82
on Apr 19, 2026
Apr 19, 2026
02:55 AM
by
Rcb82
0
124
w203 randomly ****s off out of nowhere
plebeus89
on Mar 1, 2026
Apr 18, 2026
11:05 AM
by
Jessgarcia
9
424
W203 Jammed Bonnet
eugenke
on Apr 8, 2026
Apr 17, 2026
03:35 PM
by
C230 Sport Coup
2
209
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