This bulletin provides information when DTC C129700 is logged in diagnostic address 00D4 and/or 00D5.
full bulletin at NHTSA ↗2018 Audi Q7 suspension problems
moderate Owners of the 2018 Audi Q7 have filed 16 NHTSA complaints about the suspension at roughly $900 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
Complaints
16
Recalls
0
Avg fix
$900
| Model year | suspension complaints |
|---|---|
| 2014 Q7 | 3 |
| 2017 Q7 | 30 |
| 2018 Q7 (this page) | 16 |
| 2019 Q7 | 10 |
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering suspension on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides informaiotn regarding squeaking noises when steering or maneuvering.
full bulletin at NHTSA ↗This bulletin provides ifnormaiotn when rear suspension lowering does not work.
full bulletin at NHTSA ↗This bulletin provides information parameter settings for suspension control unit J775.
full bulletin at NHTSA ↗This bulletin provides information when there are rumbling/knocking noises from the front suspension; bolted connection of strut brace.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2018 Audi Q7 is seeing repeated rear coil spring failures across a wide mileage range, with the majority of reports occurring between 60,000 and 67,000 miles. Owners describe sudden failure with no advance warning—no noises, warning lights, or vibrations. The rear end drops noticeably on the affected side, often accompanied by a loud bang or pop. Control and stability suffer immediately, especially at highway speeds, creating a legitimate safety concern.
Multiple owners have found the issue online is not isolated. One owner notes that VW issued a recall for rear springs on the 2017–2018 VW Atlas, which shares the same platform, indicating the manufacturer is aware of this problem in related vehicles. Repair costs run $1,500 to $2,400 for replacement springs. In some cases, shock absorbers are leaking simultaneously. One owner even reported both rear springs failing at once, which the dealer said was rare. The consistent pattern—same location (passenger side rear in most cases), similar mileage clusters, zero warning signs—points to a component or design issue rather than isolated wear incidents.
Same Audi Q7 suspension reports on nearby years: 2017 · 2019
Failure modes owners describe
Rear coil spring fracture/breakage
One or both rear coil springs breaking or cracking without warning during normal driving or at rest. Failure characterized by sudden loss of suspension support on one or both sides of the rear axle, with the vehicle dropping noticeably. Springs fail at various mileages from 43k to 93k miles, with most reports clustered around 60k–67k miles.
When: 43,000 to 93,000 miles; clusters reported around 60,000–67,000 miles; can occur during highway driving or while parked
Symptoms owners cite: Rear end drops suddenly with vehicle sagging on affected side; Loud bang or pop heard at moment of failure; Loss of suspension control and stability; Vehicle handling becomes unstable, especially on highway speeds; No warning lights, messages, or prior symptoms before failure; Rattling noise heard prior to failure in one case; Uneven tire wear resulting from suspension compromise; Safety systems (adaptive cruise control, automatic emergency braking) may not function correctly when suspension is compromised
Repairs/costs cited: Owners cite repair estimates of $1,500–$2,400 for rear spring replacement. Dealer inspection confirms broken or cracked springs, sometimes with corrosion visible on bottom mounts.
Recalls/TSBs owners mention: VW issued a recall for rear springs on the 2017–2018 VW Atlas, which shares the same platform as the Q7, suggesting manufacturer awareness of the issue in similar vehicles.
Shock absorber leakage
Rear shock absorbers leaking fluid, typically discovered alongside broken coil springs. Leaking shocks place additional stress on remaining suspension components and degrade ride quality and damping.
When: Discovered around 60,000 miles in conjunction with spring failure
Symptoms owners cite: Visible fluid leakage from shock absorbers; Poor suspension response to road impacts and sudden maneuvers; Compromised vehicle stability in emergency situations
Repairs/costs cited: Dealer confirmed and repaired in service records. Part of broader rear suspension failure.
Synthesized from 16 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Rear spring failure which has been reported as a common issue based on research.
Rear coil spring broke without any load on the vehicle. This condition causes some of the safety features to not work such as adaptive cruise control and automatic emergency braking.
Had suspension trouble with your 2018 Audi Q7?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the suspension problem on the 2018 Audi Q7?
It's a documented issue but not catastrophic. 16 complaints have been filed. Repairs average $900 and most owners catch it before it causes a breakdown.
At what mileage does the suspension typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $900 for suspension repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to suspension?
No active recalls currently cover suspension issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Audi/Q7.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.