Almost every warranty advertises “comprehensive cover”. What separates policies is not the headline but the component list, the financial limits and the exclusions — and those are the parts people read last.
The principle: sudden failure, not gradual wear
A vehicle warranty covers the unexpected mechanical or electrical failure of a covered component. It does not cover deterioration that was always going to happen. That single distinction explains most of what follows, and most of the disagreements that arise at claim time.
A water pump that seizes is a failure. Brake pads that have worn down over 30,000 miles have done exactly what brake pads do. The first is a warranty matter; the second is maintenance.
What is normally covered
Engine
Internal components including pistons, con rods, crankshaft, bearings, camshafts, valves, oil pump and timing gear. On most policies the cylinder head and block are covered where damage results from a covered failure.
Gearbox and transmission
Manual, automatic, DSG and CVT internal components, torque converters, and drivetrain parts such as driveshafts, differentials and, where fitted, transfer boxes. These are among the most expensive repairs on a modern car, which makes them among the most valuable things a policy can include.
Turbocharger
Increasingly standard on petrol as well as diesel. Worth confirming explicitly rather than assuming, since some cheaper policies exclude it or apply a separate lower limit.
Cooling and fuel systems
Radiators, water pumps, thermostats, cooling fans, fuel pumps, injectors and fuel rails. Cooling failures matter disproportionately because they cause consequential engine damage if not caught.
Steering, suspension and braking
Steering racks, power steering pumps, suspension components and braking system parts such as master cylinders, servos and ABS modules. Note that the wear items within these systems — pads, discs, bushes — are normally excluded.
Electrical components
Alternators, starter motors, sensors, control modules and wiring looms. Diagnostic-heavy and increasingly expensive on modern vehicles, so worth checking how broadly a policy defines this.
Air conditioning
Compressors, condensers and related components, usually excluding re-gassing, which is maintenance.
Hybrid and electric drive components
On EV and hybrid policies: drive motors, inverters, onboard chargers, high-voltage cabling and thermal management. High-voltage battery cover is normally handled separately, with its own limits and its own age or mileage cut-off, so read that section specifically rather than assuming it sits inside the general cover.
How parts and labour actually work
An eligible claim covers both the replacement part and the labour to fit it, but each is subject to limits. Labour is the one people underestimate: on many repairs it is the larger half of the bill, and a policy that pays a low hourly rate against a garage charging a market rate leaves you covering the gap.
ClearPath covers eligible claims up to £3,000 per claim, applies a £100 excess per valid claim, and covers eligible labour up to £100 per hour. There is no limit on the number of claims during the policy.
Diagnostics
Diagnostic time is usually covered only when it leads to a valid claim. If the fault turns out to be an excluded component or an issue that predates the policy, the diagnostic cost typically falls to you. This is normal across the market, but it surprises people, so it is worth knowing in advance.
What sits alongside the repair
Many policies include practical extras on authorised claims. ClearPath includes recovery reimbursement up to £60 including VAT, and vehicle hire up to £45 per day for up to seven days. Both apply only on an authorised claim and count within the £3,000 claim limit. Cover also extends to the EU for up to 60 days in any 12-month period.
What is never covered
Consistent across essentially every policy in the market: routine servicing and consumables; wear items such as brake pads, discs, clutches, tyres, wiper blades and bulbs; cosmetic and bodywork damage; accident damage, which is an insurance matter; pre-existing faults; damage from neglect, missed servicing or using the wrong fluids; and failures arising from modifications.
Read the exclusions section before the inclusions list. It describes what a policy really does far more accurately than the marketing does.
The wording matters more than the headline
Two policies can both claim to cover “the gearbox” and mean materially different things — one listing named internal components, the other covering the assembly. The useful question is not whether a part appears on the list, but what happens financially when that part fails: what is the limit, what is the excess, what labour rate applies, and does anything cap the total across the term.
Get clear answers to those four questions and you will understand a policy better than most people who have owned one for a year.