What is the difference between a warranty and a service plan?
A warranty covers failures; a service plan covers scheduled maintenance. They are frequently sold together and cover entirely different things, and confusing them leads to expensive surprises.
Warranty. Covers repair or replacement where a component fails, subject to terms.
Manufacturer warranty on a new car, typically three years or a mileage limit, sometimes longer, and generally transferring to a subsequent owner.
What it does not cover, which is the part people discover at the worst moment: wear and tear items — brake pads and discs, tyres, wiper blades, clutches, bulbs and batteries in most cases. These are consumables, not failures.
It also excludes damage, misuse, modification, and — critically — failures resulting from missed or incorrect servicing. A warranty claim can be refused where the service schedule was not followed.
Used car warranties sold by dealers and third parties vary enormously in quality. Read the claim limits per component and in total, the requirement to obtain authorisation before work, contribution requirements, and whether the payout is capped at the part's value rather than the repair cost.
Service plan. Spreads the cost of scheduled servicing — the maintenance the manufacturer specifies at defined intervals — into monthly payments.
What it covers: the routine service items, oil, filters and inspection. It does not cover repairs, MOT failures, or wear items unless specifically included.
Whether it is worth it: it is a payment arrangement, not insurance. Over the term it commonly costs a similar amount to paying for the services individually, sometimes with a discount for prepayment — so the benefit is budgeting and price protection rather than saving. Check what it includes, since some plans cover only minor services.
The important legal point: you do not have to use a franchised dealer to preserve a warranty. Under EU-derived competition rules retained in the UK, servicing may be carried out by any suitably qualified garage using parts of matching quality, provided the schedule and specification are followed and records are kept. Being told otherwise is a common and incorrect claim.
Keep evidence — invoices, stamped book or digital record — since the burden of showing the schedule was followed falls on you.