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.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Subaru Outback Mk5 (BS) Faults & Repair Costs
Lineartronic CVT Valve Body / Solenoid Failure
The BS Outback can develop internal valve body solenoid faults, causing jerky progress, warning lights and expensive dealer recommendations for full transmission replacement.
Flashing transmission warnings, Jerky engagement, Hesitation from standstill
- Drive in slow traffic and on a hill start
- Check all warning lights cycle properly
- Ask for invoices showing fluid changes or valve body repair
Front Control Arm Bushing Wear
Heavy BS Outbacks chew through the front lower arm bushes, which can make the steering feel loose and lead to repeated tyre wear problems.
Loose steering feel, Knocking over rough roads, Uneven front tyre wear
- Inspect bushings for visible tearing
- Check tyre shoulders for feathering
- Listen for front-end clonks over broken tarmac
DPF and EGR Blockage
Late diesel BS cars often respond badly to repeated short journeys, leading to blocked DPFs, EGR trouble and recurring limp-mode complaints.
Frequent regeneration, DPF warning light, Reduced power
- Ask about the car’s typical use
- Check for recent DPF cleaning or replacement
- Look for soot-related faults on a diagnostic scan
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.