Audi A4 B7

Body Variants

The Audi A4 B7 is available as Limousine and Avant — choose your body type for specific insurance data:

Generations

Engine Overview

The Audi A4 B7 is available with 12 engine variants — from 101 to 420 hp. 5 variants had engine changes — the model year is crucial.

Vehicle Weaknesses

Alternatives

Known Problems and Issues

A total of 171 weaknesses have been documented for the Audi A4 B7 (2004–2008) — 161 engine-related and 10 vehicle-related. 10 problem engines: AXX (2.0L TFSI), BWE (2.0L TFSI), CCWA (3.0L TDI V6), BFC (2.5L TDI V6), AUK (3.2L FSI V6), CDHA (1.8L TFSI), BKN (3.0L TDI V6), BBK (4.2L V8 FSI), BVE (2.0L TDI), BNS (4.2L FSI V8). Typical issues affect Gearbox, Suspension, Other, Electronics. Considered reliable: BSE (1.6L MPI), BPP (2.7L TDI V6).

A4 (BFC, 2002–2006) — Stay Away!: Camshaft and valvetrain wear, Timing belt failure with engine damage, VP44 injection pump failure. Power: 163–165 PS.

A4 (BFC-121, 2002–2006) — Be Careful: Camshaft wear from sliding rocker arms, VP44 injection pump ECU defective, Dual-mass flywheel wear. Power: 163–165 PS.

A4 (BKC, 2004–2008) — Be Careful: Camshaft scored — typical PD weakness, Timing belt — PD system increases belt load, PD unit injector failure. Power: 101 PS.

A4 (ASB, 2004–2008) — Be Careful: Timing chain elongation, Timing chain tensioner 3.0 TDI — drive C, Turbocharger wear. Power: 204–211 PS.

A4 (BRE, 2004–2008) — Be Careful: Oil pump hex-shaft drive wears out, Cylinder head crack (less common than the 170hp version), Dual-mass flywheel wear. Power: 163–170 PS.

A4 (BKN, 2004–2008) — Stay Away!: Piezo injector failure, Timing chain and tensioner, Timing chain stretch BKN 3.0 TDI. Power: 204–211 PS.

A4 (BMP, 2004–2008) — Be Careful: Oil pump drive hexagonal shaft worn, Cylinder head gasket crack, PD injectors leaking. Power: 120–126 PS.

A4 (BVE, 2004–2008) — Stay Away!: Hex oil pump drive shaft shears — engine failure, Camshaft scored, Piezo PD element failure — 2.0 TDI 170 hp. Power: 120–126 PS.

A4 (BSG, 2005–2008) — Be Careful: EGR cooler leak, Piezo injector wear, DPF blockage due to short-trip driving. Power: 163 PS.

A4 (ASB, 2006–2008) — Be Careful: Timing chain elongation, Timing chain tensioner 3.0 TDI — drive C, Turbocharger wear. Power: 232–239 PS.

A4 (CAGA, 2007–2015) — Be Careful: Injector failure caused by HP pump damage, EGR valve carbon build-up after update, Dual-mass flywheel wear. Power: 136–150 PS.

A4 (CCWA, 2007–2012) — Stay Away!: Chain tensioner cold-start rattle, Piston Slap — Alusil Block, EGR valve soot deposits. Power: 232–245 PS.

A4 (CANA, 2007–2012) — Be Careful: Timing Chain Stretches Prematurely, EGR System Clogged and Leaking, Piezo Injectors Wear Out at High Mileage. Power: 190 PS.

A4 (CLZB, 2007–2015) — Be Careful: Camshaft breakage from material defect, Piezo injectors wear prematurely, Timing chain system prone to wear. Power: 204–218 PS.

A4 (AGA, 2002–2006) — Be Careful: Chain elongation — internal camshaft chains, Idler and tensioner pulley — timing belt drive, High oil consumption. Power: 163–170 PS.

A4 (AGA-120, 2002–2006) — Be Careful: Oil consumption from valve stem seals, Camshaft adjuster leaking (oil loss), Timing chain tensioner weakening. Power: 163–170 PS.

A4 (BBK, 2003–2005) — Stay Away!: Timing chain: tensioners and guide rails — THE main problem, Alusil cylinder bore wears — elevated oil consumption to engine failure, Camshaft adjusters generate fault codes — limp home. Power: 344 PS.

A4 (AXX, 2004–2008) — Stay Away!: Becherstößel / Cam Follower Hochdruckpumpe, Ölpumpenmodul / Ausgleichswellen unzureichend, Becherstößel Hochdruckpumpe verschlissen. Power: 200 PS.

A4 (BFB, 2004–2008) — Be Careful: Turbocharger Damage from Oil Coking, Turbocharger K03 Shaft Play / Bearing Damage, Crankcase Breather (CCV) Failure. Power: 160–163 PS.

A4 (AUK, 2004–2008) — Stay Away!: Cylinder Bore Coating Detachment and Piston Slap, Piston Slap / Piston Seizure, Timing Chain Stretch — 3.2 FSI. Power: 256 PS.

A4 (BDV, 2004–2008) — Be Careful: Chain Stretch and Faulty Chain Tensioners, Elevated Oil Consumption, Valve Cover Gasket Leaks. Power: 163–170 PS.

A4 (BWE, 2005–2008) — Stay Away!: Massive oil consumption from piston rings (series problem), Camshaft chain and tensioner worn, Crankcase breather defective. Power: 200 PS.

A4 (BNS, 2005–2008) — Stay Away!: Intake valve coking — no RS4 B7 ever reaches stock power, Timing chain on gearbox side — engine-gearbox separation required, Camshaft adjusters wear with neglected oil maintenance. Power: 420 PS.

A4 (CDHA, 2007–2012) — Stay Away!: Elevated Oil Consumption Due to Piston Rings, Timing Chain Elongation, Elevated Oil Consumption Due to Undersized Oil Scraper Rings. Power: 120 PS.

A4 (CDHB, 2007–2012) — Be Careful: Extreme Oil Consumption (Piston Rings EA888), Timing Chain Broken / Jumped, Coolant Pump Leaking. Power: 160–163 PS.

A4 (CALA, 2007–2012) — Be Careful: Rear timing chain — extremely expensive to replace, Four-chain timing drive — 3.0 TDI, Engine damage from bearing failure at 95,000 km. Power: 265 PS.

What to watch out for with the Audi A4? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions