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 19
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.
Salt water penetrates the rear control arm bushings. Stress corrosion can cause the bushings to come loose, resulting in increased steering play and changed handling dynamics.
Fuel rail seals can leak, with fuel escape and fire risk. Affects early FY model years 2017–2018. Recall code 24DP.
Moisture enters through cracks in the inverter housing of the belt-driven starter-generator — short circuit, overheating, fire risk. Recall code 27H2, approximately 530,000 vehicles worldwide.
A manufacturing defect in the front seat adjustment mechanism can impair the restraint function in a collision. Approximately 2,918 Q5/SQ5 vehicles affected worldwide.
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.
Pads and discs wear quickly on the SQ5 due to vehicle weight and sport-biased setup. Rear pads are often worn from 40,000 km, fronts by 60,000 km. City driving accelerates the process noticeably.
The upper control arms of the front axle show bushing and joint wear at higher mileages. Typical from 80,000–120,000 km, especially with spirited driving or poor road surfaces.
Air suspension rubber bellows become brittle and porous. Gradual pressure loss causes the car to sink, mainly at the front. The compressor then runs continuously and overheats.
The optional carbon-ceramic brake loses significant braking performance in cold and wet conditions. Loud squealing in winter is well documented. Audi explicitly flags this characteristic.
Water collects in the front body sill sections and causes internal corrosion. Recall action: remove rust, prime, repaint, retrofit plastic covers.
The A/C compressor can fail at higher mileages. Common causes are refrigerant loss through micro-leaks in the condenser (vulnerable to stone chips) or mechanical wear.
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.
The MMI system freezes or spontaneously restarts; Bluetooth drops or cannot be activated. Primarily affects early FY models up to 2020. Usually fixable via software update.
The ZF 8HP Tiptronic occasionally shows shift hesitation when accelerating from low revs and slight judder on the 7th-to-8th gear change. Often software-related and fixable by update.
Knocking or creaking noises occur during slow manoeuvres. The cause is usually the rubber grommet where the steering column passes through the bulkhead, or the steering column universal joint.
Camera-based assistance systems are sensitive to misted screens and strong backlight. Warning messages appear even without an actual defect and usually disappear after a short drive.