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Omega Owners Forum › Omega Help › Omega General Help › overheating

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overheating (Read 740 times)

derek89 Newbie Offline Posts: 11 new tredegar, south wales Gender: Drives: 1999 omega 2.0cdxi	overheating 23. Jul 2011 at 19:11 towed caravan home friday,temp was 92-95.Next morning expansion tank was empty and puddle under car.Topped up said tank but now guage is fluctuating between 85-95+. Bled any air out and fan kicks in at 95,can anyone help as i've not had this problem before
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Varche Omega Baron Offline Posts: 3860 Andalucia, Spain Gender: Drives: 97 pre mini facelift 3 litre auto RHD Elite saloon and a 2000 Ford Ka !	Re: overheating Reply #1 - 23. Jul 2011 at 20:06 Hi, is it the first time you have towed for a while or ever with this car? Mine never misbehaved temp wise till I towed. Turned out to be radiator blocked with years of debris. Needed a good flush
Back to top	Finished breaking the red mfl Elite saloon in Spain. Got a shed load of stuff. Will post parts. IP Logged

derek89 Newbie Offline Posts: 11 new tredegar, south wales Gender: Drives: 1999 omega 2.0cdxi	Re: overheating Reply #2 - 23. Jul 2011 at 21:08 Have been towing with this car for 10years but this is the first time i've had this cooling problem
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Varche

Omega Baron

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Posts: 3860
Andalucia, Spain
Gender: male

Drives: 97 pre mini facelift 3 litre auto RHD Elite saloon and a 2000 Ford Ka !

Re: overheating
Reply #3 - 23. Jul 2011 at 21:20

Might just be something as simple as the hbv(heater bypass valve) . They very commonly fail on Omegas. It is located at the back of the engine under the windscreen scuttle and wiper assembly. Three pipes 3/4 inch approx go into it and a small vacuum pipe. The rubber membrane inside perishes over time. Is the puddle located at the back of the engine? If you use air con that sometimes creates a puddle under the car just to confuse things but is quite normal!

Replacement is fairly straightforward. Use a genuine VX one(maybe £35 to£40). pattern ones don't last.

Finished breaking the red mfl Elite saloon in Spain. Got a shed load of stuff. Will post parts.

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derek89 Newbie Offline Posts: 11 new tredegar, south wales Gender: Drives: 1999 omega 2.0cdxi	Re: overheating Reply #4 - 23. Jul 2011 at 22:50 Air con not working so i know it's not that but wet patch was large under engine but no wet evidence anywhere on engine so will check heater membrane tomorrow.Thanks for your help
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