Peugeot 307 Common Problems & Reliability
A spacious family hatchback that was popular in the UK. Electrics and engine gaskets are the main weak points. Diesel models suffer the usual PSA DPF and EGR issues. Well-maintained examples can still be reliable.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Peugeot 307 Faults & Repair Costs
Electric Power Steering (EPAS) Failure
The EPAS column can fail on the 307, causing heavy or unassisted steering. This is a dangerous fault that typically occurs without much warning.
Heavy steering at low speed, EPS warning light, Steering intermittently unassisted
- Test steering at low speed and during parking
- Check for EPS warning light
BSI Water Ingress and Electrical Faults
The body control module (BSI) located under the scuttle area is vulnerable to water ingress from blocked pollen filter drains, causing erratic electrics including phantom warning lights, wiper faults and starting problems.
Phantom dashboard warning lights, Wipers operating randomly, Central locking cycling, Car failing to start
- Check the pollen filter area for dampness
- Inspect scuttle panel drains
- Look for corrosion on BSI connector pins
Head Gasket Failure (1.6 16v)
The 1.6 16v petrol engine is known for head gasket failures, leading to coolant loss, overheating and potential engine damage. Prevention through timely coolant changes is key.
Overheating, White exhaust smoke, Coolant loss without visible leak, Mayonnaise under oil filler cap
- Check coolant level and condition
- Look for oil contamination in coolant
- Test for exhaust gases in coolant system
Clutch Slave Cylinder Leak
The concentric clutch slave cylinder can develop internal or external leaks, causing a soft or sinking clutch pedal and eventually making gear changes difficult or impossible.
Soft or sinking clutch pedal, Difficulty selecting gears, Fluid leak around the gearbox bellhousing
- Check clutch pedal feel and free play
- Inspect the gearbox bellhousing for fluid leaks
ABS Module Failure
The ABS control module can fail, triggering the ABS warning light and disabling the anti-lock braking system. The module can sometimes be repaired rather than requiring full replacement.
ABS warning light on dashboard, ABS function disabled, Traction control warning (if fitted)
- Check for ABS warning light on startup
- Scan for ABS fault codes
Buying a used Peugeot 307? 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.