UK Buyer Reliability Guide3 Known Faults Documented

Subaru Outback Mk5 (BS) Common Problems & Reliability

The BS feels more upmarket and carries more driver-assistance tech. It is a strong motorway companion, but the costly weak spots are still the CVT, front suspension and short-trip diesel use.

5
Generation Periods
3
Known Issues
1
Critical Faults
2
Moderate Issues

Select a Model Year Period

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

Most Common Subaru Outback Mk5 (BS) Faults & Repair Costs

High Risk

Lineartronic CVT Valve Body / Solenoid Failure

Est. Cost£800–£1,800

The BS Outback can develop internal valve body solenoid faults, causing jerky progress, warning lights and expensive dealer recommendations for full transmission replacement.

Warning Signs:

Flashing transmission warnings, Jerky engagement, Hesitation from standstill

Moderate Risk

Front Control Arm Bushing Wear

Est. Cost£250–£550

Heavy BS Outbacks chew through the front lower arm bushes, which can make the steering feel loose and lead to repeated tyre wear problems.

Warning Signs:

Loose steering feel, Knocking over rough roads, Uneven front tyre wear

Moderate Risk

DPF and EGR Blockage

Est. Cost£300–£1,500

Late diesel BS cars often respond badly to repeated short journeys, leading to blocked DPFs, EGR trouble and recurring limp-mode complaints.

Warning Signs:

Frequent regeneration, DPF warning light, Reduced power

Essential Pre-Purchase Step

Buying a used Subaru Outback Mk5 (BS)? 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 Subaru Outback Mk5 (BS) Buyers

A petrol BS is usually the sweet spot; diesel cars need clear evidence of long-distance running and DPF-friendly use.
Test the Eyesight cameras and adaptive cruise if fitted, and be wary of cracked windscreens that may need calibration.
The best cars have proof of CVT fluid changes and recent front suspension work rather than just routine servicing.