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 Smart Fortwo Mikuni 40002 98191441
Vendors's code: 98191441
Product code: 98191441
Barcode:
Code 39:
ISBN:
€142.28
Price
€142.28
€175.00
Price
€175.00
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Throttle Body Smart Fortwo Mikuni 40002 98191441
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Throttle body 40002 Mikuni – is it the right part for your car?
This is a used, working Mikuni throttle body with part numbers 40002 and 98191441, for: Smart Fortwo. To confirm the fit, compare the number with the label on the throttle body in your car.
Throttle Body Mikuni 40002 98191441 – Smart Fortwo
The Mikuni 40002 throttle body controls the air flow in the engine intake system. In the electronic design, the opening is managed by the engine control unit. According to the product data, it fits: Smart Fortwo.
Part numbers to compare
- 40002
- 98191441
The label on the throttle body fitted to your car should show the number 40002 or 98191441. The model name alone (Smart Fortwo) is not enough – throttle bodies with other numbers were also fitted to these cars.
Symptoms of a worn or faulty throttle body
Typical symptoms of throttle body problems in Smart cars:
- carbon deposits – rough idle, engine stalling,
- worn throttle position sensor – jerking, fluctuating revs, fault code stored in the engine control unit,
- in electronic throttle bodies: failed motor or gear drive – limp mode, loss of power, engine warning light.
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.
Questions and answers
| How do I check that the 40002 throttle body fits my car? |
|---|
| Compare the number 40002 or 98191441 with the label of the throttle body fitted to your car (Smart Fortwo). |
| 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. |
Need help choosing a part for your Smart? Send us the number from your throttle body's label and we will confirm whether this part will fit.
