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 X3 E83 Bosch 3420395 3450562 0265236012 0265950489
Vendors's code: 3450562
Product code: 0265236012
Barcode:
Code 39:
ISBN:
£108.42
Price
£108.42
£133.36
Price
£133.36
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ABS pump BMW X3 E83 Bosch 3420395 3450562 0265236012 0265950489
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Does ABS pump 3420395 come complete with the control unit?
Used ABS pump with control unit, number 3420395, inspected before sale. Matched by the numbers on the block and sticker.
Is ABS pump 3420395 the right part for your BMW?
This is a used original ABS pump with a control unit for BMW X3 E83 cars: an aluminium hydraulic block with valves and a pump motor, with the electronics bolted to it. The main number is 3420395, and the other numbers from the labels are listed below. According to the listing, the pump comes from the BMW X3 E83 model.
Part number 3420395 and related numbers
You will find the numbers on the labels, while catalogues list them as a single string:
- 3420395, BMW number in short form, without the group prefix,
- 3450562, BMW number in short form, without the group prefix,
- 0 265 236 012 (catalogue format: 0265236012), hydraulic block manufacturer's number,
- 0 265 950 489 (catalogue format: 0265950489), control unit number.
The full numbers matter, including their endings. If in doubt, send us a photo of your pump.
What ABS problems can point to
- valve or pump motor faults are stored in the control unit memory,
- the pump motor switches on at unusual moments or runs louder than usual,
- 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 3420395 and 3450562? |
|---|
| The module carries several numbers, because it is identified both by the car brand and by the manufacturer of the block and control unit. When matching the part, compare all the numbers. |
| Where do I find number 3420395 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. |
| 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 sure about the match? Send us a photo of the numbers on your ABS pump and we will check whether this module will fit.
