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.
Throttle Body BMW 3.0 D B91130662 780438401
Vendors's code: 780438401
Product code: B91130662
Barcode:
Code 39:
ISBN:
$124.06
Price
$124.06
$152.59
Price
$152.59
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Throttle Body BMW 3.0 D B91130662 780438401
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How can you check whether the B91130662 throttle body fits your car?
This is a used, working throttle body with part numbers B91130662 and 780438401, for: BMW (engines: 3.0 D). Before ordering, compare the number with the label on the throttle body fitted to your car.
Throttle Body B91130662 780438401 – BMW
In a diesel engine the B91130662 throttle body does not control power – it closes the intake when the engine is switched off to reduce shaking, and in many engines it also assists exhaust gas recirculation (EGR) control. According to the product data, it fits: BMW; engines: 3.0 D.
Part numbers to compare
- B91130662 – also printed as B9 113 0662
- 780438401 – also printed as 7 804 384 01
Check whether the throttle body in your car carries the number B91130662 or 780438401. The make alone (BMW) is not enough to choose the part – throttle bodies with different numbers were fitted to cars of this make.
Symptoms of a worn or faulty throttle body
When the throttle body in a BMW starts to fail, the most common signs are:
- soot from the EGR system on the flap – sticking flap, fault codes stored in the engine control unit,
- failed motor or position sensor – engine warning light, limp mode,
- flap not closing fully – the engine may shake when switched off.
When measurements or fault codes confirm the problem and cleaning has no effect, the throttle body is replaced with one carrying the same number. After replacement, many cars need an adaptation in the engine control unit.
Frequently asked questions
| How do I check that the B91130662 throttle body fits my car? |
|---|
| Compare the number B91130662 or 780438401 with the label of the throttle body fitted to your car (BMW). |
| Which engines does the B91130662 throttle body fit? |
| According to the product data, it fits 3.0 D engines in: BMW. |
| Does the throttle body need to be adapted (relearned) after replacement? |
| In many cars, yes – the engine control unit has to learn the positions of the new throttle body. This is done with a diagnostic tool or according to the vehicle manufacturer's procedure. |
| What condition is this throttle body in? |
| It is a used part in good working condition. The warranty period is shown in the product specification table. |
Unsure about compatibility? Send us the number from your throttle body label and we will check whether this part fits.
