Audi SQ5
EA897 evo (3rd generation 3.0 TDI), fitted from 2016 in A4 B9, A6 C8 and Q5 FY. The fully electronically controlled oil pump deliberately reduces pressure at idle — a design feature that can become a liability with age. Camshaft failures and low oil pressure are known major damage patterns.
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 5
The ECU-controlled oil pump reduces pressure at idle to approx. 1.0–1.4 bar. At high motorway oil temperatures with bearing wear, this pressure is insufficient — con-rod bearings seize from 150,000 km.
Symptoms: Oil pressure warning at idle or on country roads, knocking noises, in severe cases engine failure
All 272-hp variants built before January 2017 contained faulty camshafts. Tooth flank noise and fractures are possible; Audi acknowledges the problem, goodwill depends on mileage.
Symptoms: Clattering or ticking from camshafts even after brief warm-up, rough running, in severe cases sudden engine stall
The EA897 uses four timing chains — one per cylinder bank, one connecting chain and one for the oil pump. All chains, tensioners and guides must be renewed together.
Symptoms: Rattling on cold start, metallic knock on throttle, engine light with camshaft faults
Injector failures with oil dilution from fuel ingress. Less common on EA897 evo than predecessors, but costly to repair: replacing multiple injectors can cost €4,000.
Symptoms: Rough engine, rising oil level (fuel ingress), heavy soot production, increased consumption
The 3.0 TDI in the SQ5/S4 B9 needs sufficiently long runs for DPF regeneration. Predominantly short-trip use accumulates ash in the filter. Above 45 g load, ceramic melting is at risk.
Symptoms: Engine warning light 'particulate filter system fault', noticeable power reduction (limp mode), increased fuel consumption. DPF regeneration runs more frequently and for longer.
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.
Reports & Tests
394 owner complaints filed with NHTSA (2017–2024). Most reported: Electrical (114), Engine (78), Other (66).