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 Bosch A2224315112 0265243549 0265956109
Vendors's code: 0265243549
Product code: A2224315112
Barcode:
Code 39:
ISBN:
€284.55
Price
€284.55
€350.00
Price
€350.00
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ABS pump Mercedes Bosch A2224315112 0265243549 0265956109
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Where to find number A2224315112 on Mercedes ABS pumps
Used ABS pump with control unit, number A2224315112, inspected before sale. Matched by the numbers on the block and sticker.
Mercedes ABS pump A2224315112: hydraulic module with control unit
If the ABS warning light is on in your Mercedes, one possible cause is the hydraulic module or its control unit. ABS pump A2224315112 is a used original part, inspected before sale. The listing does not state the car model or year, so we do not give them here and match the part by its numbers.
Numbers to compare
You will find the numbers on the labels, while catalogues list them as a single string:
- A 222 431 51 12 (catalogue format: A2224315112), Mercedes number stamped on the hydraulic block,
- 0 265 243 549 (catalogue format: 0265243549), hydraulic block manufacturer's number,
- 0 265 956 109 (catalogue format: 0265956109), control unit number.
Check the numbers on your pump and compare them with those above. If any of them differs, contact us before ordering.
Symptoms of a faulty ABS pump or control unit
- the ABS stops working, although basic braking usually remains functional,
- the ABS activates for no reason during normal braking,
- the ABS warning light comes on together with the stability control warning light,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
First check the wheel sensors, their wiring and the supply voltage. Only a fault code pointing to the module justifies replacing the pump. After fitting, clear the fault codes and, if necessary, bleed the brake system.
Questions and answers
| Where do I find number A2224315112 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. |
| Do the brakes need bleeding after replacing the module? |
| If the brake lines are disconnected during fitting, the system must be bled. The fault codes in the control unit usually need to be cleared as well. |
| Can I send a photo for a compatibility check? |
| Yes. Contact us and send a photo of the numbers on your original pump, and we will help you check whether this module will fit. |
| 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. |
Not certain this is the right module? Send us the numbers from the label on your pump and we will help you compare them.
