Audi SQ5
3.0-litre TDI V6 with 347 hp for the S variant, EA897 Evo. Camshaft fracture from material defect affects early serial numbers (before 073951) — check service history and TPI-2043172 documentation before purchase. Maintenance-intensive: four-chain timing and rubber belt to the high-pressure pump need regular inspection.
Petrol replaces diesel — faster, but diesel fans are mourning
354 hp TFSI instead of BiTurbo TDI. Quicker in a sprint, but the brutal diesel torque is gone. Consumption notably higher, range shorter, character more generic. Competitive against Macan S and X3 M40i on paper, but the SQ5 community misses the diesel.
Engine Weaknesses 6
The V6 3.0 TDI has four timing chains that wear prematurely with poor maintenance. Rattling on cold start is the typical warning. Complete chain drive replacement costs approx. €3,000.
Symptoms: Rattling or clattering noises on cold start, timing chain warning in instrument cluster
On EA897 EVO engines with certain serial numbers (CRT 000001–073951), camshafts can break due to material defects. A break inevitably causes severe engine damage.
Symptoms: Sudden loss of power, rough running, engine stall without prior warning
Faulty plastic coolant control valves cause coolant loss. The plastic welded joint becomes porous and leaks. Repair costs are around €1,200–1,400.
Symptoms: Dropping coolant level, rising temperature, coolant loss without visible external leak
The AdBlue dosing valve and AdBlue tank are prone to failure. Warning messages in the instrument cluster often appear early. Replacement costs over €1,000, sometimes covered by goodwill.
Symptoms: AdBlue fault message in instrument cluster, power reduction as limp programme
Soot deposits on injectors cause scattered symptoms and rough running. Particularly common with short-trip use. Cleaning or replacement can cost several hundred euros.
Symptoms: Rough idle, increased fuel consumption, soot clouds from exhaust
The NOx sensor upstream or downstream of the SCR catalyst fails prematurely, triggering the engine warning light. Often repaired under goodwill; outside warranty approx. €300–600 replacement.
Symptoms: Engine warning light (MIL), OBD fault code P20EE or similar, exhaust after-treatment warning
Vehicle Weaknesses 5
KBA recall: stress corrosion cracking can cause elevated play between the control arm and wheel carrier. Affects build years 2019–2021. Free replacement at dealer.
Recall for Q5 FY (production July 2018 to March 2019): faulty brake master cylinders increase stopping distance. Free replacement programme through Audi.
The Haldex rear differential suffers from oil contamination by clutch debris when maintenance is neglected. A differential oil change clears the symptoms. Neglect risks differential damage.
Brake callipers seize especially after prolonged standing. Rear axle callipers are most affected. MOT reports list brake defects as a frequent fault.
Early FY models show MMI faults: faulty Google Earth view, Audi Connect dropouts and failure of the 360-degree camera. Audi has issued service actions and firmware updates.