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.
Engine control unit BMW 8470176 0281034449
Vendors's code: 0281034449
Product code: 7EAF-477CC
Barcode:
Code 39:
ISBN:
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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Will engine control unit 8470176 fit your BMW?
Used engine control unit with number 8470176 for BMW. Confirm compatibility with the number from the original control unit.
Engine control unit 8470176 for BMW: how to match it by part numbers?
If the engine will not start or the engine warning light is on, one possible cause is the control unit. Control unit 8470176 for BMW is a used original part, inspected before sale. The listing does not state the car model or year, so we do not give them in the description and match the part by its numbers.
Control unit numbers and markings
You will find the numbers on the label of the control unit, while catalogues list them as a single string:
- 8470176, car manufacturer's original number,
- 0281034449, control unit manufacturer's number.
The ending of a number often indicates a different version of the control unit, so compare every character. If you are in doubt, write to us before buying.
Control unit variant
This listing is for a control unit in the following variant(s): Locked / Unlocked. We describe the differences between the variants (locked, unlocked, Virgin, IMMO OFF, Plug and Play, clone, full set) on the ECU preparation options page. Before buying, send us the numbers from the label and we will confirm which variant is available for that number.
Symptoms of a faulty engine control unit
- the engine warning light comes on and does not go out,
- the diagnostic tester cannot connect to the control unit,
- fuel consumption rises for no obvious reason,
- starting is blocked by the immobiliser after the electronics have been replaced or repaired.
Similar symptoms also occur with faulty sensors, bad fuel or worn spark or glow plugs, so start with diagnostics and only then replace the electronics.
Questions and answers
| Where do I find number 8470176 on my control unit? |
|---|
| The numbers are on a sticker or printed on the housing of the control unit. Take a close-up photo of the label in good light so that all the characters can be read. |
| Are the make and model of the car enough to choose the part? |
| No. A single model comes with different versions of the control unit, depending on the engine, the software version and the equipment. The most reliable reference is the number on the original control unit. |
| How should I prepare for fitting the control unit? |
| Disconnect the battery, check the connector and the wiring, and after fitting read and clear the fault codes with a tester. Configuration is best carried out in a garage with suitable equipment. |
| What condition is this control unit 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 housing of your control unit, and together we will check whether this part will fit.