Thinking about buying a used Audi Q5 (2008–2020) in New Zealand? We've documented 19 known faults for this model spanning transmission, engine, cooling, and suspension. Each researched and verified before it's published. The most serious issues here are rated critical. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
19
Documented faults
Critical
Most serious
$800–$3,500
Typical repair
6
Systems covered
Known Audi Q5 faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
01S-Tronic DL501 Mechatronic Unit Failure
CriticalCommonTransmission $3,500–$9,000 to fix
The DL501 7-speed dual-clutch S-tronic gearbox fitted to petrol and diesel Q5 variants uses a combined electro-hydraulic mechatronic unit for all solenoid and hydraulic clutch control. Internal hydraulic seal deterioration in the mechatronic valve body allows cross-circuit leakage, causing solenoid response errors and erratic clutch apply pressure. The result is shuddering at low speed, harsh or hung gear changes, and eventual failsafe engagement. The Q5's heavier kerb weight and greater low-speed torque demand in city traffic and off-road creep accelerate clutch pack wear. Full mechatronic unit replacement is typically required; remanufactured units are available.
Symptoms to notice
Vibration or shudder when pulling away from rest
Harsh, clunky downshifts in slow traffic
Transmission fault light or reduced power mode
Refusal to engage drive from rest after gear selector moved
What to check
Test drive in slow stop-start traffic, making multiple full-stop and pull-away cycles. Note any shudder, vibration or hesitation at 0–20 km/h. Scan the transmission module for fault codes P17BF, P175B, P1717, or any S-tronic-related codes. Confirm S-tronic fluid has been changed at Audi-specified intervals. Check for any Audi goodwill or extended warranty correspondence for this component.
Where to look: Left side of transmission housing, mechatronic unit bolted to valve body
Ask the seller
“Has the S-tronic mechatronic unit been replaced or remanufactured?”
“Has S-tronic fluid been changed on schedule?”
“Has the gearbox ever entered failsafe or shown a warning light?”
027-speed S tronic dual-clutch low-speed shudder
MinorOccasionalTransmission $400–$3,500 to fix
The FY Q5's 7-speed S tronic dual-clutch can develop low-speed shudder and hesitant take-up as it ages, particularly on city-driven cars with no fluid-service history. It is generally durable, but a neglected gearbox can jerk and occasionally fault. A fluid service on schedule and a smooth crawl on the test drive are the reassurances to look for.
Symptoms to notice
Shudder when moving off
Hesitation from a standstill
Occasional harsh shift
Rare limp mode
What to check
Pull away gently several times and feel for shudder; try a low-speed crawl. Confirm the S tronic fluid has been serviced. Investigate any limp-mode history.
Where to look: Dual-clutch transmission / mechatronic
Ask the seller
“Has the S tronic fluid been serviced?”
“Does it shudder pulling away?”
EngineCritical
EngineCritical
EngineCritical
EngineCritical
EngineCritical
EngineCritical
CoolingCritical
SuspensionMajor
EngineMajor
ElectricalMajor
EngineMajor
EngineMajor
EngineMajor
InteriorMajor
EngineMajor
CoolingMinor
EngineMinor
17 more documented faults on the Audi Q5
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 19 documented faults for the Audi Q5, the recurring problem areas are transmission, engine, and cooling. A Audi Q5 with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Audi Q5?
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We've catalogued 19 known faults for the Audi Q5, covering transmission, engine, and cooling. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Audi Q5?
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Most single repairs on the Audi Q5 fall between $800–$3,500 at NZ independent-workshop rates. Some of the 19 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Audi Q5?
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Yes. A Audi Q5 inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $17.90 far less than the cost of missing one of the faults on this page.