UK Buyer Reliability Guide3 Known Faults Documented

Aston Martin DB11 Common Problems & Reliability

The DB11 moved Aston Martin into a more modern GT era. While the Mercedes-sourced electronics help, battery health and cooling leaks remain points of focus.

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Generation Periods
3
Known Issues
0
Critical Faults
3
Moderate Issues

Select a Model Year Period

Detailed fault breakdown, symptoms, and estimated repair bills by production year.

Most Common Aston Martin DB11 Faults & Repair Costs

Moderate Risk

Battery-voltage and module warning faults

Est. Cost£250–£600

A weak 12V battery can trigger a "Christmas tree" of dashboard warnings.

Warning Signs:

Multiple warning lights on start-up, Slow cranking

Moderate Risk

Coolant leaks from thermostat or water-pump area

Est. Cost£400–£1,500

Both the V8 and V12 can develop leaks that become serious if ignored.

Warning Signs:

Sweet smell after a drive, Dropping coolant level

Moderate Risk

Exhaust Valve Actuator Failure

Est. Cost£1,000–£2,500

The electronic exhaust valve actuators on the DB11 can fail, causing the car to go into a reduced power "limp" mode and preventing the engine from revving freely.

Warning Signs:

Car won't rev above 3000 RPM, Limp mode activation, Exhaust note changes or becomes muted, Check Engine Light

Essential Pre-Purchase Step

Buying a used Aston Martin DB11? Always check for hidden finance and write-off history.

Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.

Inspection Checklist for Aston Martin DB11 Buyers

Keep on a battery conditioner to avoid nuisance warnings.
Check for coolant smells or staining around the front of the engine.
Test the flush door handles repeatedly.