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2018 Audi A4 Quattro Premium Plus 2.0L MIL Lamp on, Limp mode
Posted to European Driveability on 11/12/2026 3 Replies

Customer came in with the primary complaint that the vehicle is going into a limp home mode. He indicated it has done it every recent drive within 3-5 miles of starting the drive. He indicates that when this occurs, the redline on the Tach goes down from 7...

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car Vehicle Data

2018 Audi A4 Quattro Premium Plus

VIN WAUENAF45J
Engine2.0 L / 4 cyl / GAS
Trans7-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Limp Mode
OccursIntermittently

Trouble Codes

P00B7Engine coolant flow low
P2181Cooling System Performance
Open Help Request

car Vehicle Data

2018 Audi A4 Quattro Premium Plus

VIN WAUENAF45J
Engine2.0 L / 4 cyl / GAS
Trans7-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Limp Mode
OccursIntermittently

Trouble Codes

P00B7Engine coolant flow low
P2181Cooling System Performance