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 BMW ATE 3451677816301 6778164 10020602864 10096008343
Vendors's code: 6778163
Product code: 10020602864
Barcode:
Code 39:
ISBN:
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Where to find number 3451677816301 on BMW ABS pumps
Used original ABS module with number 3451677816301 for BMW. Confirm compatibility with the number from your original pump.
BMW ABS pump 3451677816301: hydraulic module with control unit
If the ABS warning light is on in your BMW, one possible cause is the hydraulic module or its control unit. ABS pump 3451677816301 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:
- 3451 6778163 01 (catalogue format: 3451677816301), BMW number of the ABS pump (hydraulic part),
- 6778164, BMW number in short form, without the group prefix,
- 10.0206-0286.4 (catalogue format: 10020602864), hydraulic block manufacturer's number,
- 10.0960-0834.3 (catalogue format: 10096008343), control unit number.
Check the numbers on your pump and compare them with those above. If any of them differs, contact us before ordering.
What can point to an ABS pump failure
- brake fluid leaks from the hydraulic block, which requires immediate action,
- the ABS warning light comes on together with the stability control warning light,
- the ABS switches itself off shortly after the engine is started,
- on a slippery surface the wheels lock up noticeably sooner than they used to.
ABS faults should not be ignored, because without anti-lock protection the car brakes less well on wet or slippery roads. Diagnosis and fitting are best left to a garage with a suitable scanner.
Questions and answers
| Which car model does this pump fit? |
|---|
| The listing does not state a model or year, so confirm compatibility with the number from the original pump in your car, or send us a photo of it. |
| Does a lit ABS warning light always mean a faulty pump? |
| No. Read the fault codes first, because the cause may be a wheel sensor, its wiring or too low a supply voltage. |
| 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. |
| Is this a new part? |
| No. We sell used original modules, each one inspected before sale. You will find the warranty period in the product features table. |
Not sure about the match? Send us a photo of the numbers on your ABS pump and we will check whether this module will fit.