How much does a sump oil leak repair cost?

A sump oil leak is a common issue that can unfortunately affect many cars, from everyday hatchbacks to performance models.

The sump, located at the bottom of the engine, holds the oil that lubricates internal components. Leaks often occur for various reasons and can cost anywhere from £50 to £700 to repair, depending on the issue.

Fixing a sump leak promptly helps prevent more serious engine damage and keeps repair costs manageable. Here’s everything you need to know!

How much does it cost to fix a sump oil leak?

In the UK, the cost of repairing a sump oil leak typically ranges from £120 to over £700, depending on the severity and repair method.

Repairs could be as low as £50 for bolt replacements, but we’ll break these down below.

If the oil pan is damaged and requires replacement, or if other engine components are affected, costs can rise significantly. No matter the repair or fee, you can also use car repair finance to split the final cost into interest-free instalments.

Typical sump oil leak repair costs by component

£50 to £700 is a large range for potential sump oil leak repair costs. Here’s how it actually breaks down in 2026.

Note that these are average prices, and costs may also vary depending on your car’s engine layout, sump accessibility, and whether additional engine work is needed.

Is fixing a leaking sump expensive?

It can be, but it depends on the overall damage. A simple gasket replacement is relatively affordable, whereas replacing a damaged sump or dealing with corrosion around the pan can push costs higher.

Factors that influence the final bill include:

• Engine type and layout

• Labour time and regional garage rates

• Extent of the leak or internal damage

• Availability of parts

In general, acting early often keeps the repair in the lower price range, making sump repairs a cost-effective solution compared to potential engine damage.

How long does it take to repair a sump leak?

Repair times vary with the type of fix. Your garage will provide a precise estimate once the car is lifted and the extent of the leak is assessed.

However, general time estimates include:

• Gasket replacement: 1 to 2 hours

• Oil pan replacement: 2 to 4 hours

• Full inspection plus minor repairs: 1 to 3 hours

Common causes of sump oil leaks

Sump leaks usually result from a few recurring issues, and many can be prevented by regular checks and servicing.

Consider these four factors if you notice a sump oil leak issue.

• Worn or degraded gasket: Over time, rubber and cork gaskets harden or crack.

• Loose or stripped bolts: Improper torque or corrosion can create gaps.

• Impact damage: Hitting speed bumps or road debris can dent or crack the oil pan.

• Corrosion: Older cars or vehicles exposed to salt may develop holes in the pan.

Can you drive with a sump oil leak?

Technically, small leaks may allow short trips, but it’s not recommended.

Driving with a sump leak reduces oil levels, risks engine overheating, and can lead to severe internal damage or even cause an accident.

The longer the leak is ignored, the higher the chance of a major repair and a larger bill!

Is a sump oil leak an MOT failure?

A minor leak may not fail an MOT immediately, but a persistent drip that causes visible oil on the road or engine damage could.

MOT testers also check for leaks that compromise safety or environmental standards. So, it’s best not to risk it. Repairs should be addressed before to avoid failure.

What happens if you ignore a sump oil leak?

Ignoring a sump leak can quickly escalate costs and risks.

Low oil levels from ignoring a sump leak can lead to:

• Engine overheating

• Premature wear of bearings and moving parts

• Severe engine damage requiring major repairs or replacement

For example, a sump leak repair that might cost £150 to £250 for a gasket can escalate to £700 if the oil pan or engine suffers damage. Don’t put it off.

Final thoughts

Sump oil leaks are a frustrating, common, but manageable issue when identified early.

Regular inspections, prompt repairs, and using a certified garage help protect your engine and keep sump oil leak repair costs under control. This is your sign to book the service!

Split the cost with Bumper

If you’ve noticed a sump oil leak, it’s time to put a stop to it. Use a car repair loan to split the cost of sump oil leaks into interest-free repayments today.

Apply online for up to £5,000 and choose from 1,000s of trusted repairers.