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 ATE A1724314312 A1729014100
Vendors's code: A1724314312
Product code: A1729014100
Barcode:
Code 39:
ISBN:
€162.60
Price
€162.60
€200.00
Price
€200.00
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ABS pump Mercedes ATE A1724314312 A1729014100
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Will ABS pump A1724314312 fit your Mercedes?
Used ABS pump with control unit, number A1724314312, inspected before sale. Matched by the numbers on the block and sticker.
Mercedes ABS pump: numbers A1724314312 and A1729014100
This is a used original ABS pump with a control unit for Mercedes cars: an aluminium hydraulic block with valves and a pump motor, with the electronics bolted to it. The main number is A1724314312, and the other numbers from the labels are listed below. 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 and markings on the ABS pump
Below are the numbers as they appear on the labels, together with the single-string form used in catalogues:
- A 172 431 43 12 (catalogue format: A1724314312), Mercedes number stamped on the hydraulic block,
- A 172 901 41 00 (catalogue format: A1729014100), Mercedes control unit number.
Compare the numbers with the original pump in your car, and if any of them differs, write to us before buying.
What ABS problems can point to
- the ABS warning light comes on after the engine is started and stays on,
- valve or pump motor faults are stored in the control unit memory,
- 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
| Where do I find number A1724314312 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. |
| 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. |
| What condition is this ABS module in? |
| It is an original recycled part in good condition, checked by us. Warranty details are 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.
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