- Audi A4 - (1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002)
- Audi A4 - (2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008)
Turbocharger System Audi A4 Note Observe safety precautions Go to article Observe clean working procedures Go to article . Charge air regulation overview, engine code AEB Go to article . Charge air regulation / secondary air vacuum control overview, engine code ATW Go to article . All hose connections are secured with hose clamps: see Parts catalog Charge air pressure system must be free of leaks. Replace self-locking nuts. Always replace gaskets. Before performing a test or ..
Valve Gear, Servicing Audi A4 Note Cylinder heads with small cracks between the valve seats that are less than 0.3 mm wide and/or between one valve seat and only the first 4 threads of the spark plug thread, can continue to be used without reduced service life. Always replace gaskets, seals and O-rings. Caution After installing the camshafts, the engine must not be started for approx. 30 minutes. The hydraulic valve lifters have to settle (otherwise valves will strike the pistons). A..
Automatic Transmission 01V Audi A4 CheckingFor the electrical diagnosis of the 4 Spd. Automatic Transmission 01V. Refer to Automatic Transmission component locations. Refer to Automatic Transmission Rep. Gr. 38 For all Automatic Transmission system removal/installation procedures and torque specifications, refer to Automatic Transmission Rep. Gr. 37 ..
Camshaft liition Sensor, Checking Audi A4 Note Use only gold-plated terminals when servicing terminals in harness connector of Camshaft liition (CMP) Sensor G40 . Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements The MFI Engine Control Module (ECM) J192 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic transmission, shift select..
Clean Working Conditions Audi A4 When working on the fuel supply/injection system, pay careful attention to the following rules of cleanliness: Thoroughly clean all connections and the surrounding area before disconnecting. Place parts that have been removed on a clean surface and cover them. Do not use fluffy cloths! Carefully cover over opened components or seal, if repairs are not performed immediately. Only install clean components: Only unpack replacement parts immediately prior to i..
Clean Working Conditions Audi A4 Even minor contaminations can lead to malfunctions in the fuel injection system. When working on the fuel supply/injection system, pay careful attention to the following rules for cleanliness: Thoroughly clean all unions and adjacent areas with engine or brake cleaner and dry before disconnecting. Plug open lines and connections immediately with appropriate protective caps. Place removed parts on a clean surface and cover. Use lint-free cloths. Install cl..
Closed Throttle liition Switch, Checking Audi A4 Note Closed Throttle liition (CTP) Switch F60 is part of Throttle liition (TP) Sensor G69 and cannot be serviced separately. When servicing terminals in the electrical harness connector of Closed Throttle liition (CTP) Switch F60 , use only gold-plated terminals. Special tools and workshop equipment required Multimeter . Wiring diagram Test requirement The MFI Engine Control Module (ECM) J192 fuses OK. Battery vol..
Crankshaft liition Sensor, Checking Audi A4 Note Use only gold-plated terminals when servicing terminals in the electrical harness connector of the Crankshaft liition (CKP) Sensor G4 . Special tools and workshop equipment required Multimeter . Wiring diagram. Test requirements The MFI Engine Control Module (ECM) J192 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic tra..
Diagnostic Mode 01 - Read Current System Data Audi A4 Diagnostic Mode 01 makes it lisible to access current emissions-related measured values and diagnostic data. The original measured values (no replacement values), input and output data and system status information are displayed using Diagnostic Mode 1.Depending on scan tool and protocol used, the information displayed in diagnostic mode 01 may be referred to by different names such as OBDMID (TID), Hex-ID, Component-ID (CID), On-Board Di..
Diagnostic Mode 02 - Read Operating Conditions Audi A4 When an emissions-related fault (pending DTC, visible in mode 07) is first detected, operating conditions are stored. Mode 02 makes it lisible to access this freeze frame data as soon as this fault is shown in mode 03. Each control module only shows freeze frame data for one fault via mode 02. Therefore, there are two priority levels. If there is a malfunction with higher priority, the freeze frame data is overwritten. Fault with higher ..
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