2017–2020 Bentley Mulsanne
Browse our directory of 2017–2020 Bentley Mulsanne vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2017–2020 Bentley Mulsanne has 2 known issues. 1 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
6.75L V8 Turbo Oil Feed Line Leaks
SeriousThe legendary 6.75-litre V8 uses turbo oil feed lines that can develop leaks as they age, leading to oil consumption, potential turbo damage, and in severe cases engine bay fires if oil contacts hot exhaust components.
Symptoms: Oil smell after driving, Visible oil residue around turbo area...
Est. repair cost: £1,500–£4,000
Coolant Expansion Tank Leaks
ModerateThe plastic expansion tanks can crack or the seals can fail, leading to slow coolant loss.
Symptoms: Low coolant warning, Sweet smell of antifreeze...
Est. repair cost: £400–£800
Buying Tips for the 2017–2020 Bentley Mulsanne
- ✓Listen for any "whining" from the power steering pump.
- ✓Check for signs of coolant leaks around the front of the engine.
- ✓Ensure the rear picnic tables and entertainment screens operate perfectly.
- ✓Verify that all original accessories (umbrellas, vanity kits) are present.
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