CoolingHigh
Electric water pump / thermostat failure.
Head gasket / cooling system repair£900–£2,600
Inspect · Check for overheating history and coolant warnings.
2011–2016 BMW 5 Series · common fault repair costs
What the known faults on this BMW 5 Series typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.
Cost at a glance
- Most expensive fault
- £900–£2,600
- Top three risks, from
- £2,050
- Worst case, everything
- £10,300
The single priciest documented job on the 2011–2016 BMW 5 Series is head gasket / cooling system repair at £900–£2,600. Few cars need every repair listed here · treat £2,970–£10,300 as the full exposure if one arrived with all of them.
Cost per fault
EngineHigh
N20 timing chain wear on 4-cylinder cars.
Timing chain, tensioner & guides£900–£2,400
Inspect · Listen for a rattle on cold start; ask about any chain work.
SuspensionMedium
Steering wheel vibration or shimmy under light braking at 40-50 mph.
Suspension refresh (per axle)£250–£1,100
Inspect · Drive at 40 mph and apply light braking; feel for steering wheel judder. Visually inspect the large fluid-filled bushes on the front tension struts for black fluid leaks or tearing.
Engine / EmissionsHigh
Rough idle, hesitation under light acceleration, or unexplained coolant loss without visible external leaks.
EGR valve / cooler replacement£300–£900
Inspect · Start the engine from cold and observe the idle for hunting. Check the coolant expansion tank level. Run the registration through the BMW recall checker for outstanding EGR cooler campaigns.
Body / ElectricalMedium
Heavy condensation or standing water inside the headlight units, often accompanied by a lighting system failure warning.
Lighting unit replacement£120–£900
Inspect · Visually examine both headlight lenses for heavy misting. Switch on the headlights and indicators to ensure all LED rings and bulbs illuminate correctly without dashboard warnings.
EngineMedium
Valve-cover and oil-filter-housing gasket leaks.
Water-ingress trace & seal£150–£800
Inspect · Look for oil residue on the block and around the filter housing.
ElectricalMedium
iDrive / electronics and battery-drain gremlins.
Water-ingress trace & seal£150–£800
Inspect · Test iDrive and check for battery drain.
TransmissionHigh
Jerky, hesitant gear changes, particularly shifting from 1st to 2nd gear or clunking when coming to a halt.
Brakes (discs, pads, caliper)£200–£800
Inspect · On a test drive, accelerate gently from a standstill to check 1-2 upshift smoothness, then brake to a complete stop to feel for a transmission bump or hesitation.
Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.
Inspecting a BMW 5 Series this week?
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.