Engine Mechanical:
Complete overhaul, component replacement, timing belt/chain, seals, gaskets, lubrication system
Fuel System:
Fuel pump, injectors, lines, tank, emissions controls, evaporative emissions (EVAP)
Fuel Injection And Ignition:
ECU, sensors (MAF, O2, TPS, etc.), ignition coils, spark plugs, diagnostic trouble codes (DTCs)
Suspension Wheel And Brakes:
Struts, shocks, control arms, bushings, wheel bearings, brake pads, rotors, calipers, ABS, parking brake
Heating And Ac:
HVAC system components, refrigerant recharge, blower motor, climate control unit, diagnostics
Electrical Equipment:
Wiring diagrams, fuse box locations, lighting, power windows, mirrors, central locking, battery, starter, alternator
Body:
Exterior panel removal/installation, doors, hood, trunk, bumpers, glass, interior trim
Transmission Overhaul:
Detailed procedures for manual and automatic transmission disassembly, inspection, repair, and reassembly.
Drivetrain AWD:
Specifics on Quattro system maintenance, differential service, driveshaft and CV joint inspection.
Exhaust System:
Catalytic converter replacement, muffler and pipe repairs, exhaust manifold diagnostics.
Steering System:
Power steering pump, rack and pinion, tie rod ends, steering column components.
Body Control Modules:
Diagnostics and repair of various body control units, including comfort modules.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Troubleshooting:
Step-by-step diagnostic procedures for common and complex faults
Repair:
Detailed instructions for component removal, repair, and reinstallation
Wheel Alignment:
Specifications and procedures for front and rear wheel alignment.
Emission Control Diagnostics:
Testing and repair of evaporative emissions systems (EVAP), EGR systems, and secondary air injection.
Engine Rebuilding:
Comprehensive steps for engine disassembly, parts inspection, machining recommendations, and reassembly.
Depth:
Comprehensive, from basic servicing to in-depth mechanical and electrical repairs
Diagnostic Tools:
Information on using VAG-COM or other OBD-II scanners for diagnostic trouble codes (DTCs) and live data.
Wiring Diagrams Quality:
Detailed, color-coded wiring schematics for all electrical systems, crucial for troubleshooting.
Engine Options 1999:
1.8L I4 (Naturally Aspirated and Turbocharged), 2.8L V6 (Naturally Aspirated)
Engine 1 8T Codes:
AEB, ATW, AWM (late 1999/early 2000 models)
Engine 2 8 V6 Codes:
AHA, APR, AQD
Engine 1 8T Power:
Approx. 150 PS (110 kW; 148 hp) @ 5700 rpm (for AEB/ATW engine codes)
Engine 2 8 V6 Power:
Approx. 193 PS (142 kW; 190 hp) @ 6000 rpm (for AHA/APR/AQD engine codes)
Engine 1 8 Na Power:
Approx. 125 PS (92 kW; 123 hp) (less common in North America for 1999)
Injection Type:
Multi-point Fuel Injection (MPI) / Electronic Fuel Injection (EFI)
Engine Oil Capacity 1 8T:
Approx. 4.5 liters (4.8 US quarts) with filter change
Engine Oil Capacity 2 8 V6:
Approx. 7.0 liters (7.4 US quarts) with filter change
Body Styles:
4-door Sedan, 5-door Avant (Wagon)
Wheelbase:
Approx. 2614 mm (102.9 in)
Length:
Sedan: Approx. 4517 mm (177.8 in), Avant: Approx. 4577 mm (180.2 in)
Width:
Approx. 1733 mm (68.2 in)
Height:
Sedan: Approx. 1419 mm (55.9 in), Avant: Approx. 1453 mm (57.2 in)
Curb Weight Range:
Approx. 1400-1600 kg (3086-3527 lbs), varies by drivetrain and engine
Gross Vehicle Weight Rating:
Varies by model configuration
Towing Capacity:
Refer to owner's manual or local regulations for specifications
Oil Change Interval:
Typically every 7,500-10,000 miles (12,000-16,000 km) or annually, depending on driving conditions and oil type. Consult specific manual for exact recommendations.
Timing Belt Replacement:
For 1.8T (AEB/ATW) and 2.8 V6 engines, typically every 60,000-100,000 miles (96,000-160,000 km). Critical for preventing engine damage.
Cabin Air Filter:
Recommended replacement every 15,000-20,000 miles (24,000-32,000 km) or annually.
Spark Plug Replacement:
1.8T: Typically every 60,000 miles. 2.8 V6: Typically every 100,000 miles.
Engine Oil Viscosity:
Refer to manual, commonly 5W-40 or 5W-30 synthetic oil for turbocharged engines. Check API service classification.
Coolant Type:
G12 or G12+ (Pink) ethylene glycol-based coolant
Transmission Fluid Manual:
Refer to manual for specific gear oil specifications (e.g., GL-4 or GL-5)
Transmission Fluid Automatic:
G 052 162 A2 or equivalent (LT 71141)
Power Steering Fluid:
Pentosin CHF 11S or equivalent
Differentials AWD:
Refer to manual for specific specifications for front and rear differentials.
Common Problems 1 8T:
PCV (Positive Crankcase Ventilation) system failure leading to oil leaks and boost issues, coil pack failures, coolant flange leaks.
Common Problems V6:
Oil leaks from valve cover gaskets and cam seals, thermostat housing leaks, timing chain tensioner issues on some higher-mileage units.
Common Problems General:
Window regulator failures, suspension component wear (control arm bushings, tie rods), ABS sensor failures.
ABS Module Failure:
Common issue where ABS warning light illuminates due to faulty ABS control module.
Climate Control Headlight Switch:
Can fail, affecting HVAC operation.
Audi Legacy:
Audi's reputation for engineering excellence, Quattro AWD technology, and premium interior appointments.
B5 Generation:
The B5 generation (1996-2001) marked a significant redesign for the A4, introducing a more modern and sleek aesthetic, improved chassis dynamics, and the availability of Quattro AWD.
B5 Facelift:
The 1999 model year represents the latter part of the B5 generation. Minor updates may have occurred, but the core design remained consistent.
Manufacturing Locations:
Primarily Ingolstadt, Germany
