What causes a cooler to break

When the cooler is leaking

What to do if the cooler is leaking

If the radiator is leaking, the engine can heat up beyond the norm. Then the temperature display rises to the red area. This can ultimately lead to serious engine damage. Therefore, if the radiator is broken or leaking, the engine should be switched off until the problem has been resolved and a workshop should be selected. At FairGarage you will find reliable specialist workshops in your area for professional testing and changing of the cooler at a fixed price. You can now calculate the cost of replacing the radiator in your car, compare offers without obligation and make an appointment directly online.

Radiator protects the engine from overheating

The radiator in the car is an easy-care and maintenance-free component. A part of a closed water circuit in which cooling water circulates when the engine is running leads through the interior of the aluminum metal frame. The cooling water ensures that excess heat is removed and protects the engine from overheating. The temperature of the cooling water is displayed to the driver on the instrument panel.

Motor overheating can have several causes

In addition to a leaky radiator, frequent causes of the engine overheating are porous connecting hoses through which cooling water escapes. A broken water pump or thermostat can also cause the engine to overheat. If the engine heats up too much and a pool forms under the parked car at the same time, cooling water is likely to be dripping out.

What to do about the signs

Before thinking of driving on in such cases, the car must be towed to the workshop for a diagnosis. A leaky or broken cooler requires specialist knowledge of the cooling system and its special features. The expert knows all weak points in the cooling circuit and has the necessary specialist knowledge and equipment to reliably track down the defect. The workshop knows exactly what to do. The entire cooling system is under great pressure and a non-professional approach can lead to personal injury, engine damage and environmental damage.

If only the radiator hose is defective

In the best case scenario, there is only a defect in a radiator hose that has broken under mechanical stress, tired due to age or nibbled on by a marten. Replacing such a hose is everyday business for a trained workshop. The cooling water is properly drained, the broken hose is replaced and after a leak test, the problem is eliminated. The cost per hose starts at 20 euros, cooling water with antifreeze costs from around 8 euros per liter and the change takes around two hours, depending on the vehicle model. Together with the working hours and small parts such as hose clamps, at least 100 euros are ultimately on the bill.

Diagnosis: The cooler is leaking

Things are a little more problematic when the cooling water drips directly from a leak from the car radiator itself. Gluing or sealing the leaky cooler is forbidden simply because of the high pressure under which the cooling water is. The only option here is to replace the cooler.

In this context, one more word about sealing a car radiator with a sealant. Such little helpers can sometimes be helpful at short notice in order to reach the nearest workshop. Sealants are by no means a permanent solution because they cannot withstand the pressure in the cooling system over the long term.

This is how the costs add up

The repair costs in the specialist workshop for a defective radiator vary depending on the vehicle model, year of construction and engine. You can have the exact costs calculated for your vehicle on FairGarage and arrange the right workshop appointment online. You should expect the additional costs for the coolant, hoses and small parts.

Cost of changing the cooler on a BMW E46

For example, anyone traveling with a BMW E46 (built in 2012) pays for a replacement of the leaky radiator from around 400 euros including the new original spare part. The new cooler costs from around 220 euros and the working price is at least around 100 euros.

Costs for changing the cooler on a Golf 5

A new cooler for a VW Golf 5 (built in 2010) costs around 240 euros. Together with the workshop costs for around two to three hours of work, these cost from around 150 euros, the final price can be from 470 euros.

Other parts can cause the problem

If the cooler and hoses are leak-proof, there are other reasons for the coolant temperature being too high. If the engine is too hot, a defective water pump or a broken thermostat can be the culprit. In that case, the cost of new parts varies greatly. Influencing factors are age and design of the car, type of workshop, region, manufacturer.

Do not continue driving with the leaking radiator

Despite these costs for repairing the cooling system or even replacing the radiator, the alternative, engine damage due to a leaky car radiator, is even more unpleasant and expensive. In any case, the repair of the cooling system belongs to a specialist workshop. They know how to handle coolant and how to properly dispose of it. A specialist is also familiar with the high pressure of the cooling system and proper ventilation. One can only advise against trying on oneself. Be it that you get stuck with your car on the way or that even greater damage occurs.