How Long Does Each Type of Service Take?
There are three main service types in the UK, and each takes a different amount of time:
- Interim service: 1–1.5 hours — covers the essentials (oil change, filter, fluid top-ups, visual checks)
- Full service: 2–3 hours — everything in an interim plus a more comprehensive set of checks and replacements
- Major service: 3–5 hours — includes spark plugs, fuel filter, cambelt check, and a full vehicle health assessment. Some major services span two days if parts need ordering
These are approximate timings under normal circumstances. Any additional work found during the service — worn brake pads, a failing battery, low tyre tread — will add to the time if you authorise the repairs on the day.
What Happens During a Car Service?
The exact checklist varies by service type and garage, but a typical full service includes:
- Engine oil and oil filter replacement
- Air filter inspection and replacement (if due)
- Cabin filter replacement
- Brake fluid test (replaced if contaminated)
- Coolant level and condition check
- Battery test
- Brake pad and disc inspection
- Tyre tread depth and pressure check
- Lights, wipers, and horn check
- Steering, suspension, and exhaust visual inspection
An interim service is a shorter version focusing on oil change, filters, and the most safety-critical checks.
Can I Wait at the Garage or Should I Leave the Car?
For an interim service, most garages are happy for customers to wait — it usually takes under 90 minutes. Many independent garages and fast-fit centres have a waiting area.
For a full or major service, dropping the car off and collecting later in the day is more practical. If additional work is discovered, the garage will call you to discuss options before proceeding — this process can take time if parts need sourcing.
Always ask about a courtesy car or loan car when booking if you need to be mobile. Not all garages offer this, so it is worth confirming in advance.
What Can Make a Service Take Longer?
Several factors can extend service time beyond the standard estimate:
- Additional repairs: worn pads, faulty lights, failed battery tests — these add time if authorised on the day
- Parts availability: if a specific filter or component is not in stock, the garage may need to wait for a delivery
- Older or high-mileage vehicles: corroded bolts and worn components can be harder to work on
- Workshop backlog: a busy garage may not start your car immediately after drop-off
It is always worth asking the garage for a realistic time estimate when you drop the car off, particularly if you have a fixed time you need it back.
How Often Should I Service My Car?
Manufacturer service intervals vary, but a common pattern is:
- Interim service: every 6 months or 6,000 miles (whichever comes first) — particularly important for high-mileage drivers
- Full service: every 12 months or 12,000 miles
- Major service: every 2–3 years or 24,000–36,000 miles, or as per the manufacturer's schedule
Always follow the manufacturer's schedule in your vehicle handbook. Modern cars with variable service intervals may display a service reminder on the dashboard when it is due.
Does a Service Take Longer Than an MOT?
Typically yes. An MOT inspection takes around 45–60 minutes when the car is on the ramp. A service takes longer because it involves hands-on work — changing fluids, replacing components, and inspecting wear items — not just a pass/fail assessment. Many garages offer a combined MOT and service, which can save money and means the car is only off the road once.