the coolant is contaminated or more than 5 years old
The additives that protect the cooling system against corrosion are used up over time and the coolant turns acidic, attacking metal components such as the water pump, radiator and thermostat.
Cooling system
Coolant exchange
with the BG MVP2 unit
Why it matters
Why does coolant need to be changed?
Modern engines run at higher operating temperatures than ever before, which makes the cooling system critical to engine reliability and life.
What happens to ageing coolant
Coolant degrades over time — the additives that protect the system against corrosion are gradually used up. Once that happens, the coolant turns acidic and attacks metal components such as the water pump, radiator and thermostat. The deposits and contaminants formed during degradation also settle on heat transfer surfaces, severely limiting the engine ability to cool effectively.
How it can end
The result can be water pump failure, engine overheating, a damaged cylinder head gasket or even a warped cylinder head. These are among the most expensive repairs on the whole vehicle — and a regular coolant change prevents them.
Preventive vehicle maintenance
Preventive vehicle maintenance
Changing the coolant regularly at the recommended intervals is one of the most effective and at the same time cheapest ways to prevent engine failure. Neglected coolant can irreversibly damage expensive components such as the cylinder head, water pump or radiator within a few years.
Request an appointmentWhen to act
When is a coolant exchange recommended?
Based on our experience, we recommend an exchange in cases where:
the coolant has not been changed for about 48,000 km
Changing the coolant regularly at the recommended intervals is one of the most effective and cheapest ways to prevent engine failure, so we recommend including it in regular servicing.
the engine runs hotter than usual
Deposits and contaminants formed as the coolant degrades settle on heat transfer surfaces, limiting the engine ability to cool effectively and risking overheating or damage to the cylinder head gasket.
Products used
Products and equipment used for the coolant exchange
BG Universal Cooling System Cleaner
A cleaning product that, before the exchange itself, removes rust, mineral deposits and other contaminants accumulated in the cooling system and prepares it to be filled with new coolant.
BG Universal Super Cool
A product added to the new coolant that protects the system against corrosion, foaming and contamination caused by an acidic environment.
How it works
How is the coolant exchange with the BG MVP2 unit performed?
The coolant exchange service with the BG MVP2 unit, using BG Universal Cooling System Cleaner and BG Universal Super Cool, keeps your cooling system in perfect condition for as long as possible.
Diagnostics — the condition and level of the coolant are checked, along with a visual inspection of the system for leaks.
The coolant is tested for the content of protective additives and for acidity.
The engine operating temperature and the function of the radiator and fan are checked.
The vehicle is prepared — the engine is warmed up to operating temperature.
The BG MVP2 unit is connected to the vehicle cooling circuit.
BG Universal Cooling System Cleaner is applied and circulated through the system for 30 minutes.
Deposits, rust and contaminants are removed during the cleaning cycle.
The exchange process starts — the BG MVP2 unit gradually draws off the worn coolant.
New coolant according to the manufacturer specification is added by the unit at the same time.
A check that the full volume of coolant has been exchanged with no air bubbles left in the system.
BG Universal Super Cool is added to the new fill for long-term protection.
The BG MVP2 unit is disconnected and the coolant level in the expansion tank is checked.
The cooling system is bled.
The joints and hoses are checked for leaks after the service.
Test drive and a final check of the engine operating temperature.
Pricing
Service pricing
Pricing valid from 1 August 2026
| Service option | What's included | Price |
|---|---|---|
| Passenger car – single cooling circuit |
Coolant exchange with the BG MVP2 unit for passenger cars with a normal cooling system volume. The price includes all work related to the coolant exchange, including BG Universal Cooling System Cleaner and BG Universal Super Cool. The coolant itself is not included in the price. The final price will be confirmed on the basis of the exact vehicle specification.
|
120 €incl. VAT |
Request an appointment No obligation — we'll get back to you with the earliest available slot for your vehicle.
Coolant before and after the exchange.
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A service job can be combined with the underbody treatment, so you only leave the vehicle with us once.
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At the Bratislava centre you can buy BG products for preventive protection of the engine and fuel system.
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Bratislava and Banská Bystrica
Tell us which BG service you're interested in and we'll send you the earliest available appointment for your vehicle.