A4(B6 Platform) Discussion - Engine start blocked by immobilizer P1570 - Could someone please help me understand where to look for the error: Engine start blocked by immobolizer P1570. Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005 Engine start blocked by immobilizer P1570 Clear the A4(B6 Platform) Discussion - A4 Fault Code: 16500 - Engine Coolant Temp. Sensor (G62): Implausible Signal - My Audi A4 2002 2.0SE (UK model) has the below fault code, any ideas what could be wrong and what needs repairing? Control Module Part Number: 8E0 909 557 D Component and/or Version: 2.0L R4/5VS 0002 Software CodeP0420 Audi Tech Notes. As the code description implies the P0420 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert Thecost to diagnose the P0685 Audi code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 Whatis the Cost to Diagnose the Code P0140 Audi? Labor: 1.0. The cost to diagnose the P0140 Audi code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. icame across with check engine light on my 04 1.8t bfb Audi a4b6. codes: Engine runs ok. Fuel consumption is a bit high, also secondary air pump is working Toobtain your registration code, please reach out to info@mhh-co.com. MHH AUTO FORUMS. Automotive Airbag, Dash, ECU, IMMO. Engine login code for audi a4 b6 2.0 alt. Hello I am new to the world of Forums and i am looking for some help with an Audi A4 S Line 2004 saloon i have just purchased 1 - The heater will not blow hot - Fault code 01272 Central Flap Regulator Motor - V70 Locked or has no Voltage Supply Possible other fault code - 18049 - Read DTC memory of A/C control module - tdb 2 - Thereare three ways to reset the Audi A4’s check engine light. We recommend trying to identify the problem and fixing it before resetting the check engine light. 1. Fix and Wait. The best way to clear the check engine light is to pull the trouble code, identify and fix the issue and then drive your A4 around until the module that threw Thecar was running poorly and throwing random multiple misfire codes so we changed out the spark plugs, ignition coils, timing belt (it was due), water pump, and radiator fan module. After the repairs were made, the car still ran exactly the same so we took the car in for a smoke test and XfBtOp0.