Austin Mini Thirty Service Schedule: Intervals, Costs & What's Critical

Austin Mini Thirty service: key facts

Oil service every 6,000 miles or 6 months
Gearbox oil: £60–£100 — don't skip this one
1 generation from 1989 to 1998
6 tracked service items across routine, major, and periodic schedules

Routine service items

These are the items covered in a standard service. Most garages include oil, oil filter and a basic inspection. The rest are typically checked or replaced on a schedule.

Service item	Interval	Typical cost
Engine oil and filter Original manufacturer interval was 6,000 miles or 6 months. THIRTY	6,000 miles or 6 months	£80–£120
Air filter Paper element filter should be replaced annually. THIRTY	12,000 miles or 1 year	£20–£40

Major service items

These are the big-ticket items. Miss them and you risk engine or gearbox damage. The costs are higher but the consequences of skipping are much worse.

Service item	Interval	Typical cost
Gearbox oil Original schedule was infrequent oil changes. THIRTY	24,000 miles or 3 years	£60–£100

Periodic maintenance

Items that don't need doing at every service but should be on your radar at the right mileage or age.

Service item	Interval	Typical cost
Spark plugs Standard interval was 12,000 miles. THIRTY	12,000 miles or 1 year	£40–£80
Brake fluid 2-year interval regardless of mileage. THIRTY	2 years	£60–£100
Coolant flush 2-year coolant change recommended. THIRTY	24,000 miles or 2 years	£80–£140

Known issues to watch for

The most common problems reported on the Austin Mini Thirty, ranked by severity.

dangerous

Subframe mounting point corrosion (THIRTY)

The front and rear subframes mount to the monocoque shell at specific pickup points that are prone to corrosion on all classic Minis.

dangerous

Wheel bearing failure (THIRTY)

Front and rear wheel bearings on the Mini Thirty fail at 17.4 times the national fleet average according to MOT data, with the problem worsening over the 2020-2024 period.

minor

Emissions failure - carburetor adjustment (THIRTY)

This is primarily due to the SU carburetor running rich or lean from age-related wear, incorrect mixture adjustment, or worn throttle spindles.

minor

Suspension bush deterioration (THIRTY)

MOT data shows suspension bush and joint wear at 9.0 times the national fleet average, though this failure rate is improving.

1 more known issues tracked. Check a specific car's history to see what matters for its age and mileage.

Check a Austin Mini Thirty's service history

Enter a reg to see franchised dealer service records — dates, mileage, and work done at every visit.

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Austin Mini Thirty service FAQs

How often should a Austin Mini Thirty be serviced?

A Austin Mini Thirty should have an oil service every 6,000 miles or 6 months, whichever comes first. Original manufacturer interval was 6,000 miles or 6 months.

How much does a Austin Mini Thirty service cost?

Costs vary depending on the service items required and whether you use an independent garage or main dealer. Independent garages are typically 30-50% cheaper.

Can I service a Austin Mini Thirty at an independent garage?

Yes. Under UK consumer law, using an independent garage does not void your manufacturer warranty, provided they use parts meeting the manufacturer's specification and follow the correct schedule. However, independent services won't appear in the franchised dealer digital records.

Austin Mini Thirty Service Schedule & Costs