Mercedes-benz W111 C3989 Engine Trouble Code
Mercedes-benz W111 C3989 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.
Mercedes-benz W111 C3989 Code Meaning :
OBD-II Diagnostic Chassis (C) Trouble Code For Engine
Ignition System Or Misfire
Engine Oil Temperature Sensor Malfunction
Cylinder 10 Contribution/balance Fault
Exhaust Gas Recirculation Sensor B Circuit High

When you check Mercedes-benz W111 car engine light came on code C3989 the reason should be . However manufacturer may have a different definition for the C3989 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.
C3989 OBD-II Diagnostic Chassis (C) Trouble Code Description
C3989 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For C3989 Code
The reason of C3989 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.C3989 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.
C3988 Previous Engine Trouble Code For Mercedes-benz W111 | Next Engine Trouble Code For Mercedes-benz W111 C3990 |