Audi A5 vs Mercedes CLS

Both are coupés & GTs. First-time MOT failure at age 7, and what each one is known to fail on.

The Mercedes CLS is the more reliable of the two. It fails its first MOT at age 7 18.2% of the time, against 19.4% for the Audi A5.

Audi A5

19.4%

fail at age 7

Rank 138 of 239 · 67k miles at 7 · 116,132 tests

Mercedes CLS

18.2%

fail at age 7

Rank 115 of 239 · 64k miles at 7 · 17,327 tests

What each one fails on

Measured

The faults each records most at ages 6 to 9. Same figures as each full report.

A suspension pin, bush or joint excessively wornAdvisory15.8%

A spring or spring component fractured or seriously weakenedFail5.7%

A shock absorber damaged to the extent that it does not function or showing signs of severe leakageAdvisory5.0%

A spring or spring component fractured or seriously weakenedAdvisory2.0%

A suspension pin, bush or joint excessively wornFail1.6%

A shock absorber damaged to the extent that it does not function or showing signs of severe leakageFail1.2%

A wheel bearing with excessive playAdvisory4.7%

A suspension pin, bush or joint excessively wornAdvisory4.0%

A suspension joint dust cover severely deterioratedMinor3.0%

A spring or spring component fractured or seriously weakenedFail2.6%

A wheel badly distorted or wear between wheel and hub at spigot mountingAdvisory1.8%

Engine MIL illuminated indicating a malfunctionFail1.7%