E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

W124 code READER

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Old Jun 12, 2013 | 03:25 PM
  #1  
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From: Inland Empire
1991 300te with a 95 front end facelift
W124 code READER

Does anyone have a good code read for w124. Have anyone heard of a MERCEDES OBD1 CODE READER they have one on Ebay. I want to know a little bit about it before buying one.
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Old Jun 12, 2013 | 05:05 PM
  #2  
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'88 300e
I've never heard of one. Are you talking about the the earlier models? i own a 88 and use a multimeter to check things.
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Old Jun 12, 2013 | 05:58 PM
  #3  
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From: Inland Empire
1991 300te with a 95 front end facelift
Originally Posted by Dr1fgt@gious
I've never heard of one. Are you talking about the the earlier models? i own a 88 and use a multimeter to check things.
MERCEDES OBD1 CODE READER. W124, 126, 140, OTHERS,1979-1995. ENGINE, SRS & A/C. this model is on ebay you can take a look on ebay.com
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Old Jun 14, 2013 | 06:30 AM
  #4  
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88 W124 300CE
It;s a high priced version of this.

http://www.ebay.com.au/itm/Mercedes-...item4cf9d50f32

All it is is a blink code reader with set of banana plugs !

$30 versus $89.95 for the one you showed.

Same functionality.

OR

$10 worth of parts from Radio Shack to make your own.


Last edited by stormtigers; Jun 14, 2013 at 06:32 AM.
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Old Jun 14, 2013 | 07:22 PM
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From: Inland Empire
1991 300te with a 95 front end facelift
Originally Posted by stormtigers
It;s a high priced version of this.

http://www.ebay.com.au/itm/Mercedes-...item4cf9d50f32

All it is is a blink code reader with set of banana plugs !

$30 versus $89.95 for the one you showed.

Same functionality.

OR

$10 worth of parts from Radio Shack to make your own.

thank you I just found a used one on EBAY just waiting for they to ship it to me. I have seen this one also.
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Old Jun 26, 2013 | 04:18 AM
  #6  
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w124 230e
Can that read w124 VIN 10296310039552E90 & Engine WB1240211B095611?

Last edited by OKONJI; Jun 26, 2013 at 04:25 AM.
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Old Jun 26, 2013 | 07:38 PM
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88 W124 300CE
Originally Posted by OKONJI
Can that read w124 VIN 10296310039552E90 & Engine WB1240211B095611?
Don't know what that first number is but the VIN (the WDB) number doesn't show up n decode. Are you sure about those numbers ?
Post a picture of the data plate.
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Old Jun 28, 2013 | 07:19 AM
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w124 230e
Sorry I was away on a seminar.
There was a mix up. VIN is WDB1240211B095611; Eng. No. 10296310039552E90.
Again, which is the best scanner for this vehicle?

Thanks for reply.
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Old Jun 28, 2013 | 11:32 AM
  #9  
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88 W124 300CE
Originally Posted by OKONJI
Sorry I was away on a seminar.
There was a mix up. VIN is WDB1240211B095611; Eng. No. 10296310039552E90.
Again, which is the best scanner for this vehicle?

Thanks for reply.
Thats better early 200E with M102 engine.
Same as in post #4 above.
Only code reader is one that shows number of flashes which is errors.
Nothing fancy about them ! NEar fuse box you should see black/brown thing with numbered holes - you have either 8 or 16 I would think.
Here is where you get error codes.
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Old Jul 1, 2013 | 03:38 AM
  #10  
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w124 230e
Thanks Stormtigers for your reply!

The car performs fine, I love it. My curiosity was just in case I needed to scan it.
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Old Jul 18, 2013 | 04:15 PM
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88 W124 300CE
Originally Posted by Plutoe
There seems to be some confusion as to what type of scanner to use on what model of W124----It all depends on the type of diagnostic connector your car has. There are 8,9,16 and 38 pin connectors.

The device advertised is actually an "on off ratio meter" that only works with the 1980-1994 9 pin diagnostic pin MB vehicles. With the 8,16 and 38 pin type you need the MB HHT(or equal) or if the 38 pin car also has and OBD port you can use the every day scanners.

It is confusing therefore be very knowledgeable about you car before you buy any diagnostic equipment
Plutoe are you referring to the original OP mention of an OBD1 reader or the cheaper flash reader ? They are both the same thing despite it being called an OBD1 both use set of banan plugs. The original one is really just an overpriced "glossy" of the one I mentioned.
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Old Jul 19, 2013 | 07:50 PM
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'95 W124 Wagon
My understanding is that the '95 model does not require a code reader.

Had the check engine light on awhile ago and stopped by a mechanic that worked on European cars and he read the blinks and looked up the "code".

What is the secret to all this? I have seen the code documentation but not exactly sure how to begin and read the leds to determine the code?

Thanks!
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Old Jul 20, 2013 | 01:43 AM
  #13  
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'95 W124 Wagon
Originally Posted by Plutoe
Well you are correct and almost correct----to really determine what diagnostic tool to use-------please tell me how many sockets are in your diagnostic connector or provide the VIN and I will then find out!!
Here is my VIN#: WDBEA92E6SF318493

Thanks!
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Old Jul 20, 2013 | 05:47 PM
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From: SF Bay Area, USA
'95 W124 Wagon
Originally Posted by Plutoe
I thought I could get closer than I did. You either have the 16 pin rectangular type(passenger side near firewall) or the 38 pin circular type(drivers side under fuse flap).

In either case and since 1994 the pulse counter type was discontinued and the use of the MB HHT(also incorporated in the current DAS Xentry diagnostic software) is to be used, but the 16 pin type still had the two small buttons to retrieve the faults.--------I have no idea if this helps or what all I know if you know someone with DAS Xentry they can diagnose your car!!

Passenger side rectangular type is what I have. Any procedure overview on how to retrieve the fault code?

Thanks!

Last edited by hages; Jul 20, 2013 at 05:47 PM. Reason: grammar
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Old Jul 20, 2013 | 10:02 PM
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'95 W124 Wagon
Originally Posted by Plutoe
Based on your VIN and what I have read your 104.992-----the faults can only be read out with the MB HHT and DAS Xentry using the three plug type(red, white and yellow) adapter---The pulse reader is not applicable. Therefore there are loads of indies who have the DAS Xentry diagnostic software that will be able to read and and clear all motor, chassis and body codes.
W124 code READER-cam00041_zpsf426c2a7.jpg
Okay, but this german mechanic did not have any other tool than his eyes and counted the blinks I suppose.

Thanks for the info!

Last edited by hages; Jul 21, 2013 at 12:27 AM.
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Old Jul 21, 2013 | 03:02 AM
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Originally Posted by Plutoe
Based on your VIN and what I have read your 104.992-----the faults can only be read out with the MB HHT and DAS Xentry using the three plug type(red, white and yellow) adapter---The pulse reader is not applicable. Therefore there are loads of indies who have the DAS Xentry diagnostic software that will be able to read and and clear all motor, chassis and body codes.
It has been my experience that all pre-OBD W124 cars (1995 and earlier non-california) can be read using the pulse counter device shown at the beginning of this thread. All the three lead DAS adapter does is send the pulse counter the the DAS multiplexer which in turn sends it to the computer. In this mode, all the DAS software does is count the pulses, then lookup the fault to display on the computer screen. A list of fault codes can be found online for these cars, so all that is really needed is the simple LED/push button device. Starting with OBDII you get the 38 pin round connector and DAS / Xentry is required.

Last edited by Floobydust; Jul 21, 2013 at 03:11 AM.
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Old Jul 22, 2013 | 01:18 AM
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'95 W124 Wagon
Thanks Plutoe.

Can you explain how to perform the code reading? Should the ignition be on or on ACC and I push once on the #2 button and the #4 led blinks and I count the blinks?

Rocket science to me....
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Old Jul 22, 2013 | 02:11 PM
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'95 W124 Wagon
Okay, I do have the 24 page PDF doc (DTC_W124_M104). Just wondering if there is something unique for the '95 California emission model.... guess not, no worries.

Thanks for your help!!

Check out this YouTube Video:

It appears he is seeing two codes: 3 and 10

Does that correspond to(?):
Code 03: Lamdba control inoperative
Code 10: Voltage at hot wire mass airflow sensor too low/high

Thanks "experts"!!

Last edited by hages; Jul 22, 2013 at 02:27 PM.
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Old May 19, 2014 | 08:38 PM
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300e
Mercedes OBD1 diagnostic code reader tool - Blink reader

Ricks Diagnostic Code Reader. Americas #1 selling OBD1 code reader. Also known as a Blink reader.
Includes 166 page PDF code file, "how to" video and plug adapters for connection to 38 pin cars.
My code reader does all cars: 8, 16 and 38 sockets.
Open enclosure design allows you to store your code papers inside!
Crazy fast free Priority Mail shipping from Kansas.
Foreign buyers please use my Ebay page.
Email me - MercedesCodeReader@gmail.com


Purchase here - Ricks Mercedes Code Reader
or
Ebay - Mercedes Code Reader - W124 W201 300e 320e 400e 190e and others

W124 code READER-dsc_5818-006.jpg

W124 code READER-dsc_5936d22b-001.jpg

Last edited by rick dean; Jun 13, 2014 at 10:03 PM. Reason: spelling
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Old May 20, 2014 | 09:50 AM
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300e
Thanks

Thanks for the compliment. My reader is very durable, won't fracture and isn't susceptible to solvents. My price is very fair and includes free Priority Mail shipping from Kansas, so pretty much 2 days anywhere in America.

Get creative and build your own code reader! About $12 worth of parts and 1 hour of time. Its nothing more than 3 wires soldered to a push switch and an LED stuffed into a plastic container. And the PDF code file is available for free on the net. Keep it simple!

$32 - Purchase here - Ricks Mercedes Code Reader or Ebay - Mercedes Code Reader - W124 W201 300e 320e 400e 190e and others

Last edited by rick dean; Jun 14, 2014 at 09:58 AM. Reason: spelling
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Old Jun 13, 2014 | 12:07 PM
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Mercedes OBD1 diagnostic code reader tool - Blink reader

These code readers actually have been around for years longer, and are sold at an even lower price and have a easier to hold design. Check it out, we have used one for 10 years, plus they are less expensive at only $32.99 delivered!: http://www.ebay.com/itm/321431790694...84.m1555.l2649
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Old Jun 13, 2014 | 01:19 PM
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Mercedes Code Reader

Ours works great, is made in the U.S.A. and the one that is made of a recycled lotion container is kind of cheesy and seems to be the knockoff since they came on the scene years later LOL.
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Old Nov 26, 2014 | 10:03 PM
  #23  
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300e
Smile Happy Turkey Day.

Erik that's funny! My kids use the white cups for M&M's and Starburst. Not sure what they are actually used for, probably Cheese dip or Fish bait! I buy them in bulk. Any way, I really like your bore welder. Well designed and congratulations on the patents.

My family and I will be in Boston the 2nd or 3rd week of March (spring break). Never been to New Hampsire and thought it would be a nice drive. I'd like to check out your welder.

Rick

Last edited by rick dean; Nov 27, 2014 at 09:09 AM. Reason: typo
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Old Mar 2, 2015 | 05:16 PM
  #24  
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Bore Welder

Hey Erik Esslinger! Tentatively we will be north of Boston near Manchester the 15th of this month. We are driving my sisters car(s) back to Kansas. Our kids have spring break that week. Weather and kids permitting we'll stop by your shop the 18th or 19th after lunch. Would like to see your bore welder in action. Rick Potter
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Old Jul 6, 2018 | 01:56 PM
  #25  
teahead's Avatar
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1994 e320 coupe
Originally Posted by rick dean
Thanks for the compliment. My reader is very durable, won't fracture and isn't susceptible to solvents. My price is very fair and includes free Priority Mail shipping from Kansas, so pretty much 2 days anywhere in America.

Get creative and build your own code reader! About $12 worth of parts and 1 hour of time. Its nothing more than 3 wires soldered to a push switch and an LED stuffed into a plastic container. And the PDF code file is available for free on the net. Keep it simple!

$32 - Purchase here - Ricks Mercedes Code Reader or Ebay - Mercedes Code Reader - W124 W201 300e 320e 400e 190e and others
Why is the one on ebay $526???
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