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 5A2A747 5A2A748
Vendors's code: 5A2A747
Product code: 5A2A748
Barcode:
Code 39:
ISBN:
€487.80
Price
€487.80
€600.00
Price
€600.00
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ABS pump BMW ATE 5A2A747 5A2A748
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What does number 5A2A747 on an ABS pump mean?
ABS pump 5A2A747 complete with control unit, used and inspected. Compare the numbers with the original in your car.
Used BMW ABS pump with number 5A2A747
ABS pump 5A2A747 for BMW 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. The listing does not state the car model or year, so we do not give them here and match the part by its numbers.
Where to find the numbers on an ABS pump
You will find the numbers on the labels, while catalogues list them as a single string:
- 5A2A747, BMW number in short form, without the group prefix,
- 5A2A748, BMW number in short form, without the group prefix.
Check the numbers on your pump and compare them with those above. If any of them differs, contact us before ordering.
When an ABS module needs replacing
- the brake pedal pulses or feels uneven for no obvious reason,
- the ABS activates for no reason during normal braking,
- brake fluid leaks from the hydraulic block, which requires immediate action,
- the ABS warning light comes on together with the stability control warning light.
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
| Where do I find number 5A2A747 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. |
| 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. |
| 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.
