2007 Audi A4
2007 Audi A4
Overview
The 2007 Audi A4, part of the B7 generation, offered a blend of premium features and performance. While generally well-regarded for its driving dynamics and upscale interior, like many vehicles of its era, it has specific areas where owners have reported recurring issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, examining common problems across its various engine and transmission configurations. Understanding these potential pitfalls can help prospective buyers and current owners make informed decisions regarding maintenance and repair.
Engine
2.0L TFSI (BWA/BPJ)
PCV Valve Failure
- Symptoms: Rough idle, whistling noise, oil leaks, check engine light.
- Solution: Replacement of the Positive Crankcase Ventilation (PCV) valve assembly.
- Cost: $150 - $300
Oil Consumption
- Symptoms: Excessive oil consumption between changes, blue smoke from exhaust.
- Solution: Often requires piston ring replacement or updated PCV system.
- Cost: $1,500 - $3,000+
Timing Chain Tensioner Issues
- Symptoms: Rattling noise from the engine, especially on startup; potential for catastrophic engine failure if ignored.
- Solution: Replacement of the timing chain, tensioners, guides, and seals.
- Cost: $1,000 - $2,500
3.2L FSI (BKH)
Timing Chain Wear
- Symptoms: Rattling noise from the engine, check engine light with timing correlation codes.
- Solution: Replacement of timing chains, tensioners, guides, and related components.
- Cost: $2,000 - $4,000+
2.0L TDI (BPW)
Turbocharger Issues
- Symptoms: Loss of power, black smoke, turbo warning light.
- Solution: Turbocharger rebuild or replacement.
- Cost: $1,200 - $2,500
Injector Problems
- Symptoms: Rough running, poor fuel economy, difficulty starting.
- Solution: Cleaning or replacement of fuel injectors.
- Cost: $600 - $1,200
Transmission
6-Speed Manual (0A3)
Clutch Wear
- Symptoms: Slipping clutch, difficulty shifting gears, burning smell.
- Solution: Clutch kit replacement (clutch disc, pressure plate, release bearing).
- Cost: $800 - $1,500
6-Speed Tiptronic Automatic (09L/09G)
Torque Converter Issues
- Symptoms: Shuddering during acceleration, slipping gears, harsh shifting.
- Solution: Torque converter replacement or transmission fluid flush and filter change.
- Cost: $1,000 - $2,500
Valve Body Problems
- Symptoms: Erratic shifting, transmission warning light, failure to engage gears.
- Solution: Repair or replacement of the transmission valve body.
- Cost: $1,500 - $3,000
Multitronic CVT (01J)
Transmission Failure
- Symptoms: Jerking, slipping, loud noises, complete loss of drive.
- Solution: Transmission rebuild or replacement.
- Cost: $2,500 - $5,000+
Suspension
Standard Chassis
Control Arm Bushings
- Symptoms: Clunking noises over bumps, vague steering feel, uneven tire wear.
- Solution: Replacement of worn control arm bushings or entire control arms.
- Cost: $400 - $800
Wheel Bearing Failure
- Symptoms: Humming or grinding noise that increases with speed, play in the wheel.
- Solution: Replacement of the affected wheel bearing.
- Cost: $300 - $600
Electrical
General Electrical System
Window Regulator Failure
- Symptoms: Power windows not working, window stuck in position, grinding noise when operating.
- Solution: Replacement of the window regulator mechanism.
- Cost: $200 - $400
HVAC Blower Motor Resistor
- Symptoms: Fan only works on highest setting, or not at all.
- Solution: Replacement of the blower motor resistor.
- Cost: $100 - $250
Xenon Headlight Ballast Failure
- Symptoms: One or both xenon headlights not working, flickering.
- Solution: Replacement of the headlight ballast unit.
- Cost: $300 - $600
Exterior
Body Panels & Trim
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Interior
Cabin Components
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Summary Verdict
The 2007 Audi A4 presents a mixed reliability profile. The gasoline 2.0L TFSI engine is prone to issues like PCV valve failure, oil consumption, and timing chain tensioner wear, which can be costly to repair. The 3.2L V6 also faces timing chain concerns. Diesel variants have reported turbocharger and injector problems. Automatic transmissions, particularly the CVT, can be a significant source of expense with potential for failure. Manual transmissions are generally more robust, though clutch wear is a common maintenance item. Suspension components like control arm bushings and wheel bearings are typical wear items. Electrical gremlins, such as window regulators and HVAC resistors, are also noted. While the exterior and interior generally hold up well, potential buyers should be aware of the significant engine and transmission-related costs that can arise.