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VOLKSWAGEN 2.0L 4-Cylinder – AEG, AVH, AZG, BDC & BEV Engines For 1998-00 model years, although the manufacturer does not recommend a specific scheduled maintenance interval, belt manufacturers suggest the belt be replaced at 60,000 mile intervals. For 2001-03 model years, the manufacturer recommends the belt be replaced at 105,000 mile intervals.
NOTE: For 2004, manufacturer does not provide a timing belt replacement interval. REMOVAL & INSTALLATION Locating Engine Identification Code (AEG) Locating Engine Identification Code (AVH, AZG, BDC & BEV) Locating TDC Mark on Transaxle

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FORD: 1990-1997 THUNDERBIRD 1990-1999 MUSTANG, TAURUS SHO 1991-1999 CROWN VICTORIA, ESCORT, TAURUS 1992-1994 TEMPO 1993-1997 PROBE 1995-1999 CONTOUR 1990 BRONCO II 1990-1997 AEROSTAR 1990-1999 RANGER 1991-1999 EXPLORER 1994-1996 BRONCO 1994-1997 F SUPER DUTY, F-250 HD 1994-1999 ECONOLINE, F-150, F-250 LD, F-350 1995-1999 WINDSTAR 1997-1999 EXPEDITION 1999 F-250 HD, SUPER DUTY F SERIES

LINCOLN: 1991-1999 CONTINENTAL, TOWN CAR 1993-1998 MARK VIII 1998-1999 NAVIGATOR
MERCURY: 1990-1997 COUGAR 1991-1999 GRAND MARQUIS, SABLE, TRACER 1992-1994 TOPAZ 1995-1999 MYSTIQUE 1997-1999 MOUNTAINEER

ISSUE SERVICE TIP
This TSB article is a diagnostic procedure to address vehicles that exhibit lean driveability MASS AIR FLOW (MAF) DISCUSSION symptoms and may or may not have any Diagnostic MAF sensors can get contaminated from a variety Trouble Codes (DTCs) stored in memory. of sources: dirt, oil, silicon, spider webs, potting
ACTION
compound from the sensor itself, etc. When a MAF sensor gets contaminated, it skews the transfer Follow the diagnostic procedures described in the function such that the sensor over-estimates air flow following Service Tip. The revised diagnostic at idle (causes the fuel system to go rich) and procedure is a more accurate means of diagnosing under-estimates air flow at high air flows (causes
the symptoms. fuel system to go lean). This means Long Term Fuel Trims will learn lean (negative) corrections at idle and learn rich (positive) corrections at higher air flows.

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1998-99 MANUAL TRANSMISSIONS Volkswagen/Audi V.A.G. Type 02J 1998-99; Beetle 1999; Golf, Jetta IDENTIFICATION Volkswagen Audi Group (VAG) transaxle is identified by a type number cast into transaxle case. Three letter suffix identifies model. Code letter and production date information is stamped on a machined surface located inside the start mounting area and on upper portion of transaxle clutch housing surface. DESCRIPTION Type 02J is a 5-speed transaxle consisting of an input shaft, mainshaft/drive pinion and a differential assembly which transfers power to front wheels. LUBRICATION Place vehicle on level surface. Remove sound insulation below transmission, if equipped. Remove filler plug. Oil level should be to bottom of filler opening. Add fluid as needed. Use synthetic gear oil (G50, SAE 75W/90). Capacity is 2.1 qts. (2.0L).

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APPLICABLE MODEL(S)/VINS All 1999 Protege (1.6L) with VINs lower than JM1 BJ222* X0 140057. All 1999 – 2000 Miata with (1.8L) VINs lower than JM1 NB353* Y0 155947. DESCRIPTION A rattling noise may be heard from the engine when depressing the clutch or when revving the engine in neutral. In extreme cases, customers may experience noise at all times. This concern can be caused by improperly machined number 4 main cap of cylinder blocks which may result in premature wear of the thrust bearing. Customers having this concern should have their vehicle repaired using the following procedure
REPAIR PROCEDURE
1. Verify customer concern. 2. Using a dial indicator, measure and record the crankshaft end play as shown (Protege). Rotate the crankshaft 180o, and again measure and record the crankshaft end play. – If end play is 0.3mm or more, proceed to STEP 3. – If end play is still less then 0.3mm, refer to the Work- shop Manual for further diagnostics. 3. Replace the applicable part per the Workshop Manual: • Protege – Short Engine • Miata – Partial Engine Note • Completely clean any parts that will be reused. 4. Verify the repair.

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Customer Concern: The engine cranks but will not start. It has spark. No fuel injector pulse. There is power to the fuel injectors. The security light is on, key on. The computer doesn’t recognize the key. Immobilizer system lock-out. Tests/Procedures: 1. Have the customer bring in other keys to try and then try to escape from the lock mode. 2. The vehicle needs to go to the dealer for the factory scan tool. There is a TSB #NTB00-019 for immobilizer system problems and updated components, but would need the factory scan tool to reprogram it either way. Potential Causes: Malfunctioning Immobilizer System Incorrect Key