Coolant expansion tank replacement
Replace a cracked or leaking coolant header tank.
Typically £114 – £164 depending on your carYour : · About 1 hour
- Fixed pricesKnow the cost before you book
- Vetted mechanicsQualified, insured and checked
- 12-month guaranteeOn parts and labour
- Pay afterCard held, charged when you approve
About this job
Plastic expansion tanks crack and their caps fail, which lets coolant escape and can cause overheating. The mechanic fits a new tank and cap and bleeds the system.
Signs you might need it
- Coolant leaking from the tank
- Crack in the tank
- Level drops with no other leak
What's included
- Replacement expansion tank and cap
- Coolant refill and bleed
- Pressure test
Plus travel, disposal of old parts and a 12-month guarantee.
Typical prices by car size
| Small car (e.g. city car, supermini) | £114 |
| Medium car (e.g. family hatchback, saloon) | £126 |
| Large car / SUV / MPV | £145 |
| Premium or performance car | £164 |
| Small van / pickup | £152 |
Coolant expansion tank replacement prices for popular cars
- Ford Fiesta · £114
- Ford Focus · £126
- Ford Kuga · £145
- Ford Puma · £126
- Ford Transit Custom · £152
- Vauxhall Corsa · £114
- Vauxhall Astra · £126
- Vauxhall Mokka · £126
- Vauxhall Insignia · £145
- Volkswagen Polo · £114
- Volkswagen Golf · £126
- Volkswagen Tiguan · £145
- Volkswagen Passat · £145
- Volkswagen Transporter · £152
- BMW 1 Series · £164
- BMW 3 Series · £164
- BMW X3 · £164
- Audi A1 · £164
- Audi A3 · £164
- Audi A4 · £164
- Audi Q5 · £164
- Mercedes-Benz A-Class · £164
- Mercedes-Benz C-Class · £164
- Mercedes-Benz GLC · £164
Questions about coolant expansion tank replacement
How long does coolant expansion tank replacement take?
Usually about 1 hour. Your mechanic will tell you if your car needs longer.
Can it be done at my home?
In most cases, yes. Mobile mechanics need a safe, level place to park, such as a driveway or quiet street. If your job needs a workshop we'll let you know before you pay anything.
Is the price fixed?
Yes. The price on your quote is what you pay. If the mechanic finds something else, they'll explain it and give you a separate price – nothing extra is done without your OK.
Is the work guaranteed?
Yes – parts and labour are covered for 12 months. See our guarantee page for the details.
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