Mercedes-benz Clk Class B20A9 Engine Trouble Code
When the check engine light comes Mercedes-benz Clk Class B20A9 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.
Mercedes-benz Clk Class B20A9 Code Meaning :
OBD-II Diagnostic Body (B) Trouble Code For Engine
Fuel And Air Metering (Injector Circuit Malfunctions Only)
Injector Circuit Malfunction - Cylinders
Cylinder 10 Contribution/balance Fault
Exhaust Gas Recirculation Sensor B Circuit High

When you check Mercedes-benz Clk Class car engine light came on code B20A9 the reason should be . However manufacturer may have a different definition for the B20A9 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.
B20A9 OBD-II Diagnostic Body (B) Trouble Code Description
B20A9 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For B20A9 Code
The reason of B20A9 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.B20A9 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
B20A8 Previous Engine Trouble Code For Mercedes-benz Clk Class | Next Engine Trouble Code For Mercedes-benz Clk Class B20AA |