Used car guide

2011 Porsche Cayman: common problems and what to check

What gets flagged at MOT on 2011 Porsche Caymans, from 540 tests in 2025, plus known faults and what to look at before you buy one.

540MOT tests in 2025
88%pass first time (all 2011 cars: 61%)
3,800typical miles a year
20%had brakes flagged

What gets flagged at MOT

The share of 2011 Porsche Cayman MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Brakes
    20% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Tyres
    14% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Suspension
    11% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Lights and electrics
    6% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Wipers, windscreen and mirrors
    5% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Steering
    1% of testsRough price £100–£450

    At the viewing: On a straight road the steering wheel should sit straight. Feel for play or knocking when turning.

Looking at a Porsche Cayman?

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Other years

YearMOT testsMost flagged
20191,002Tyres 19%
20181,195Tyres 17%
2017884Tyres 19%
20161,006Tyres 13%
20151,096Tyres 16%
20141,196Tyres 17%
20131,042Tyres 17%
2010530Brakes 25%
2009657Brakes 21%
2008853Brakes 25%
20071,388Brakes 26%
20061,449Brakes 30%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2011 Porsche Caymans registered in 2011. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score