W210 transmission issues.

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10mpg

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Jan 21, 2017
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3
Car
E430 estate
Hi Mercdudes..

I have an big low black E430 wagon with 'isssues' here she is as I collected her looking rather sad (and far to low)..



It's a very high spec car, with voice activation, full electric air seats heated and cooled, sat nav, HID's, front rear and side parking sensors, literally everything you could have was ticked, bought new by the MD of JCB i'm told..

I bought it as a project but i'm now at the 'pulling my hair out' stage as it keeps resisting my attempts to fix it.

I bought it stuck in what i think is second gear, suspecting the usual conductor plate/wiring issues. it has P N and D no gear changing and no +/-.

There is NO speedometer reading when driven..

I replaced the conductor plate and the wiring connectors, no joy.

The only fault my scanner (Snap On with Mercedes module) comes up with is p2310 Can Communication Traction system faulty, my scanner says the trans is NOT in limp mode, I have checked the oil with a proper disptick at the proper temperatures, as my scanner gives me a full live data analysis of the trans. As soon as I clear the code it reappears.

I replaced the ESP ecu with one with the same part number.

The gearbox control ECU was full of oil from the failed so this was cleaned out (possible suspect?) though oil being non conducting should not damage electronics?

The car had a seized and badly leaking rear calliper that I removed so I could move the car easily so currently it's only braking on two wheels, I didn't want to go to the hassle of dropping the rear subframe to get at the pipes if I couldn't solve the trans issue, could this be a factor?

Are the trans ECU's model specific? is it work changing for a second hand unit? It's hard work finding other 430's to get parts from, would a 320/V6 one suffice?

Thanks in advance, I'd really like to save this car and keep it on the road, i could probably make more by breaking it, but i really hope It doesnt come to that.
 
Last edited:
TCU part numbers are

A0275451032 replaced by
A0305452032 replaced by
A0305452332

This TCU is used on most if not all W210s and many other 5 speed autos (W203 W215 etc) so should be easy to find

P.S. Whilst I've got it open, you may as well have the Datacard

Datacard
Identification number: WDB2102702B332095 4
Chassis

Sales designation: E 430
Order number: 0 1 537 17037
Delivery date: 15 02 2001
Paint code 1: 197U OBSIDIAN BLACK
Equipment: 211A LEATHER ANTHRACITE
Engine no.: 113940 30 274855
Transmission: 722632 02 731557
SA code
026 DISCONTINUATION OF SPARE KEY
197U OBSIDIAN BLACK
210A LEATHER
211A LEATHER ANTHRACITE
213 PARAMETER STEERING
220 PARKTRONIC SYSTEM (PTS)
241 FRONT SEAT LH ELECTRIC ADJUSTABLE WITH MEMORY
249 INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING
275 MEMORY PACKAGE (DRIVER SEAT, STRG. COL., MIRROR)
289 WOOD/LEATHER STEERING-WHEEL
293 SIDEBAG IN REAR LEFT AND RIGHT
345 RAIN SENSOR
352 COMAND
354 ANTENNA FOR TELEPHONE D/E-NET
390 LINGUATRONIC-ENGLICH(BRITISH)
401 DELUXE FRONT SEATS WITH VENTILATION AND HEATING CO
404 MULTI-CONTOUR SEAT, FRONT LEFT
405 MULTI-CONTOUR SEAT, FRONT RIGHT
414 ELECTRIC TILT/SLIDE SUNROOF IN GLASS VERSION
423 5-SPEED AUTOMATIC TRANSMISSION
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
480 SELF-LEVELLING SUSPENSION
500 OUTSIDE REAR VIEW MIRROR LH AND RH FOLDING
543 SUN VISOR WITH MAKE-UP MIRROR L. AND R., BE-
550 TRAILER COUPLING
551 ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
581 AUTOMATIC CLIMATE CONTROL
600 HEADLAMPS - CLEANING EQUIPMENT
611 EXIT LIGHTS FOR DRIVER DOORS
617 XENON HEADLAMPS, LEFT-HAND TRAFFIC
641 LIGHT ALLOY WHEEL, 11-HOLE DESIGN
668 PACKAGING FOR SHIPPING VEHICLES WITH TIE-DOWN HOOK
673 HIGH-CAPACITY BATTERY
679 BASIC WHEEL AS SPARE WHEEL
682 FIRE EXTINGUISHER
801 AEJ 00/1 R 170 AEJ 99/2
819 CD CHANGER
833 INVALID/GREAT BRITAIN,ADDITIONAL PARTS
853 TELEPHONE FITTED ON "TOWER"; NOKIA, D-NET
875 HEATED SCREEN WASH SYSTEM
876 INTERIOR LIGHT ASSEMBLY
877 READING LAMP IN THE REAR
882 INTERIOR SAFEGUARD
910 DYNAMO WITH HIGHER CAPACITY (FFO)
926 EXHAUST GAS CLEANING WITH EU4 TECHNOLOGY (EURO 4)
955 EQUIPMENT PACKAGE ELEGANCE
984 COC DOC., DELETION OF VEHICLE REGISTRATION DOC.
989 IDENTIFICATION LABEL UNDER WINDSHIELD
Other
Lamps: HELLA
 
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Thats great information thanks, so do you think it's worth changing the trans ecu?

That's a hell of a spec list I bet it cost a few quid new!
 
Yes it has most options, some I would love to have on mine. Let me know if you strip it :)

On ebay they start at £25 second hand so it's definitely worth a punt.
 
TCU part numbers are

A0275451032 replaced by
A0305452032 replaced by
A0305452332

This TCU is used on most if not all W210s and many other 5 speed autos (W203 W215 etc) so should be easy to find

P.S. Whilst I've got it open, you may as well have the Datacard

Datacard
Identification number: WDB2102702B332095 4
Chassis

Sales designation: E 430
Order number: 0 1 537 17037
Delivery date: 15 02 2001
Paint code 1: 197U OBSIDIAN BLACK
Equipment: 211A LEATHER ANTHRACITE
Engine no.: 113940 30 274855
Transmission: 722632 02 731557
SA code
026 DISCONTINUATION OF SPARE KEY
197U OBSIDIAN BLACK
210A LEATHER
211A LEATHER ANTHRACITE
213 PARAMETER STEERING
220 PARKTRONIC SYSTEM (PTS)
241 FRONT SEAT LH ELECTRIC ADJUSTABLE WITH MEMORY
249 INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING
275 MEMORY PACKAGE (DRIVER SEAT, STRG. COL., MIRROR)
289 WOOD/LEATHER STEERING-WHEEL
293 SIDEBAG IN REAR LEFT AND RIGHT
345 RAIN SENSOR
352 COMAND
354 ANTENNA FOR TELEPHONE D/E-NET
390 LINGUATRONIC-ENGLICH(BRITISH)
401 DELUXE FRONT SEATS WITH VENTILATION AND HEATING CO
404 MULTI-CONTOUR SEAT, FRONT LEFT
405 MULTI-CONTOUR SEAT, FRONT RIGHT
414 ELECTRIC TILT/SLIDE SUNROOF IN GLASS VERSION
423 5-SPEED AUTOMATIC TRANSMISSION
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
480 SELF-LEVELLING SUSPENSION
500 OUTSIDE REAR VIEW MIRROR LH AND RH FOLDING
543 SUN VISOR WITH MAKE-UP MIRROR L. AND R., BE-
550 TRAILER COUPLING
551 ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
581 AUTOMATIC CLIMATE CONTROL
600 HEADLAMPS - CLEANING EQUIPMENT
611 EXIT LIGHTS FOR DRIVER DOORS
617 XENON HEADLAMPS, LEFT-HAND TRAFFIC
641 LIGHT ALLOY WHEEL, 11-HOLE DESIGN
668 PACKAGING FOR SHIPPING VEHICLES WITH TIE-DOWN HOOK
673 HIGH-CAPACITY BATTERY
679 BASIC WHEEL AS SPARE WHEEL
682 FIRE EXTINGUISHER
801 AEJ 00/1 R 170 AEJ 99/2
819 CD CHANGER
833 INVALID/GREAT BRITAIN,ADDITIONAL PARTS
853 TELEPHONE FITTED ON "TOWER"; NOKIA, D-NET
875 HEATED SCREEN WASH SYSTEM
876 INTERIOR LIGHT ASSEMBLY
877 READING LAMP IN THE REAR
882 INTERIOR SAFEGUARD
910 DYNAMO WITH HIGHER CAPACITY (FFO)
926 EXHAUST GAS CLEANING WITH EU4 TECHNOLOGY (EURO 4)
955 EQUIPMENT PACKAGE ELEGANCE
984 COC DOC., DELETION OF VEHICLE REGISTRATION DOC.
989 IDENTIFICATION LABEL UNDER WINDSHIELD
Other
Lamps: HELLA
How do you get that info? Would love to know the original spec for my car.

Sent from my SM-T365 using Tapatalk
 
Clean-ish ATF won't damage the TCU, as you say.
Old stuff, containing metallic particles, could.
Many 722.6 boxes are still on 'sealed for life' ATF ...
 
OK update, I bought a whole rotten but running e430 estate, i swapped everything that could possibly be causing a problem, i also rebuilt the rear suspension and the handbrakes.

Still stuck in second gear, still no speedo action.

I still get daft speed readings on my scanner, like rear wheel sdoing 300mph and the fronts doing 12mph when the car is sat still

Does anyone have a pin out wiring diagram for the ESP unit so i can test the abs sensor feeds?
 

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