Engine CoolingHigh
Rapid coolant loss and overheating on 5.0 V8 models due to the plastic crossover pipes splitting or water pump failure.
Head gasket / cooling system repair£900–£2,600
Inspect · Shine a torch beneath the front of the supercharger and behind the water pump pulley. Look for pooled pink coolant or dried white crusty residue in the engine 'V'.
EngineHigh
3.0 TDV6 crankshaft and timing chain wear on higher-mileage cars
Timing chain, tensioner & guides£900–£2,400
Inspect · Listen for rattle on a cold start and check oil-change intervals
TransmissionMedium
Transfer box and driveshaft wear causing vibration
Driveline / differential repair£450–£1,800
Inspect · Feel for vibration at motorway speed and clunks on take-up
ElectricalHigh
Module and infotainment faults, warning-light cascades
Infotainment repair or software fix£120–£1,200
Inspect · Run a full diagnostic scan for stored faults across modules
SuspensionHigh
Air suspension springs and compressor failing, car sitting low overnight
Suspension refresh (per axle)£250–£1,100
Inspect · Leave overnight and check the car has not dropped at any corner
Hydraulics / Dynamic ResponseHigh
Hydraulic fluid leaking from corroded pipes, causing a red suspension warning and heavy knocking during cornering.
Suspension refresh (per axle)£250–£1,100
Inspect · Kneel by the driver's side front door and look under the sill for dripping hydraulic fluid. Check the ACE fluid reservoir under the bonnet for a low level.
Engine / IntakeMedium
Restricted performance warning, accompanied by a loud hissing noise under load and poor acceleration due to split plastic inlet manifolds on V6 diesels.
Exhaust / emissions component£200–£950
Inspect · Open the bonnet, have a colleague rev the engine sharply to 3,000 rpm, and listen for a high-pitched hiss. Look for black, oily soot around the plastic cam covers.
BrakesMedium
Large discs and pads worn on heavy cars
Brakes (discs, pads, caliper)£200–£800
Inspect · Measure disc lip and check pad thickness
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.