Common Problems with the
2020–2021 McLaren 720S / 765LT

We've identified 2 known issues that can affect the 2020–2021 McLaren 720S / 765LT. 1 of these are serious faults that could be expensive to repair.

2
Known Issues
1
Serious
1
Moderate
0
Minor

The 2020–2021 period has 1 more issue than the McLaren 720S / 765LT average across all year periods.

All Known Issues

Accumulator Failure (PCC II)

SeriousSuspension & Chassis

The nitrogen-filled hydraulic accumulators that manage roll and pitch eventually fail, leading to a harsh ride and suspension warnings.

Most affected: All Super Series models

Estimated cost: £1,500–£2,200Affects: 20172023Often appears around: 15k-30k miles

Typical symptoms

  • Suspension Fault warning
  • Excessively bouncy or harsh ride
  • Power steering pump whining

What to inspect before you buy

  • Drive the car over a series of small bumps at moderate speed
  • Listen for hydraulic pump strain when selecting lifting modes

Stress Cracks in Gorilla Glass

ModerateBodywork & Rust

The specialized lightweight glass used for the upper door sections and pillars can develop stress cracks.

Most affected: Coupe models

Estimated cost: £1,500–£3,000 per panelAffects: 20172021Often appears around: Age and vibration related

Typical symptoms

  • Visible hairline cracks in the glass panels
  • Water ingress during heavy rain

What to inspect before you buy

  • Close inspection of all glass panels, particularly where they meet the bodywork

Buying Tips for the 2020 McLaren 720S / 765LT

  • Check the Gorilla Glass roof panels and C-pillars for any stress cracks
  • Verify the ride quality is supple; a "bouncy" or harsh ride indicates failed accumulators
  • Ensure the active rear wing (Airbrake) operates smoothly through its full range of motion
  • Look for evidence of the latest software updates to the PCC II system

Browse 2020–2021 McLaren 720S / 765LT in our Directory

View MOT history, registration data, and reliability scores for 2020–2021 McLaren 720S / 765LT vehicles.

View 2020–2021 Directory

Other McLaren 720S / 765LT Year Periods

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