What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P2187FUEL SYSTEM LEANP2187FUEL TRIM BANK 1, SYSTEM TOO LEAN AT IDLE SPEEDP2187FUEL SYSTEM TOO LEAN AT IDLE•Manufacturer communications
15Original wording in English
MERCEDES-BENZ
Reported code forms P218762
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
Reported code forms P218762
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
Reported code forms P218762
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
Reported code forms P218762
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
MERCEDES-BENZ
Reported code forms P218762
Complaint Check engine light on. Engine in limp-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire-…
AUDI
Reported code forms P218700
This bulletin contains a software update for one or more of the following DTCs P008700, P21F500, P21F400, P218700, P21F800, and P217700.
Check vehicle applicability
109A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A3 | 2008 |
| Audi | A3 | 2007 |
| Audi | A3 | 2006 |
| Audi | A4 | 2009 |
| Audi | A4 | 2008 |
| Audi | A4 | 2007 |
| Audi | A4 | 2006 |
| Audi | A4 | 2005 |
| Audi | RS 3 | 2018 |
| Audi | RS 3 | 2017 |
| Audi | TT | 2010 |
| Audi | TT | 2009 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.