A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
ABS pump Mercedes W203 ATE A0044310512 10020402904 10094715133 A2035451632
Vendors's code: A0044310512
Product code: 10094715133
Barcode:
Code 39:
ISBN:
€203.25
Price
€203.25
€250.00
Price
€250.00
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ABS pump Mercedes W203 ATE A0044310512 10020402904 10094715133 A2035451632
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Where to find number A0044310512 on Mercedes ABS pumps
Used ABS pump with control unit, number A0044310512, inspected before sale. Matched by the numbers on the block and sticker.
How to identify ABS pump A0044310512 for your Mercedes W203
ABS pump A0044310512 for Mercedes W203 is a used original module that regulates brake pressure when a wheel starts to lock up. It is matched by the numbers on its labels, not by the car model alone. According to the listing, the pump comes from the Mercedes W203 model.
Where to find the numbers on an ABS pump
The numbers from the listing, as written on the labels and as a single string:
- A 004 431 05 12 (catalogue format: A0044310512), Mercedes number stamped on the hydraulic block,
- 10.0204-0290.4 (catalogue format: 10020402904), hydraulic block manufacturer's number,
- 10.0947-1513.3 (catalogue format: 10094715133), control unit number,
- A 203 545 16 32 (catalogue format: A2035451632), Mercedes control unit number.
The full numbers matter, including their endings. If in doubt, send us a photo of your pump.
When an ABS module needs replacing
- the ABS warning light comes on after the engine is started and stays on,
- the ABS activates for no reason during normal braking,
- brake fluid leaks from the hydraulic block, which requires immediate action,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
It is worth reading the fault codes and checking the sensor wiring before replacement. Fitting and bleeding the brake system are usually carried out by a garage with the right equipment.
Questions and answers
| What is the difference between numbers A0044310512 and 10020402904? |
|---|
| One of the numbers is stamped on the hydraulic block, while the other comes from the module manufacturer or from the control unit sticker. When matching the part, compare all the numbers. |
| Where do I find number A0044310512 on my pump? |
| The numbers are stamped or printed on the aluminium hydraulic block, and the control unit has a separate sticker. Take a close-up photo of both places in good light. |
| Are the pump and the control unit sold separately? |
| In this listing they are a single module: a hydraulic block with the pump and valves, with the control unit attached to it. |
| What condition is this pump in? |
| It is a used original part, inspected before sale. You will find the warranty period in the product features table. |
Want to be certain? Send us the numbers from the block and sticker on your ABS pump, and together we will check whether this part will fit.
