Question about 1998 BMW 5 Series

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Driving my bmw e39 535i temp all fine accelerated up hill blew radiator top hose off and removed radiator to find bottom of rad also expanded now put another rad in but after 2 mins of running top hose is solid pressurised ? temp still only halfway but pressurised 84000 miles on car been told head gasket but not had temperature probs before any help appreciated chrris

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Your cars radiator hose is building excessive pressure because the coolant / water could not circulate freely on your cooling system thats why its overheating, try removing the thermostat valve first and observe if it makes a difference, if problem is the same it could be the water pump is the culprit. try eliminating the easy things and less expensive approach first before deciding to top overhaul the engine of your car. a broken head gasket is not enough reason wont blow off your top radiator hose.

Posted on Apr 21, 2010

Testimonial: "thanks for info will defo try and let ya know how i get on fingers crossed ...."

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