Solve Overheating On 3 Series BMW

There seems to be some BMW cars that suffer from an overheating trouble. The 3 series E36 car is the one known for this problem. The model hit seems to be the 4 cylinder made between 1996 and 1999. Head gaskets and water pumps on 3 series BMW cars For Sale of this point in time were of suspect quality when they left the factory, meaning that this problem could then arise.

Drivers of this BMW age car heard their water pumps getting louder. This meant the plastic impellers inside the pump had probably snapped causing the cars to start overheating. This means though the pump is spinning it may not actually be pumping any water through the system. So if the pump on your motorcar does sound noisy and the temperature gauge is going into the red then the water pump should be checked straight away. The modified pumps should have metal impellers to solve the problem.

If the car is still overheating and the heater is also blowing out cold air, ascertain the thermostat is not jammed shut, preventing the water from circulating and forming an air lock.

A garage would normally suggest the flaw lies in the head gasket having blown or the head being warped. People have in fact gone to great expense to change the head gasket, only to discover that it is not the defect at all. A faulty thermostat housing has also been to blame. These thermostat houses can warp somewhat to let air seep into the cooling system. An airlock can then happen, causing the water to stop flowing around the engine. It also appears that even after pressure testing and leak testing of the engine this fault is not easily detectable.

It’s better to make sure you check this part as one of your first items so you do not waste your cash when it is not necessary. At the same time exchange any rubber hoses that appear to be perished or do not fit snugly to make sure these can be ruled out for any faults. The newer BMW 1 Series and 3 Series do not seem to suffer from any of these problems.