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[ZEE]

HI
WELL I HAVWE BOUGHT THIS OMEGA W REG 2.5 AND V6 ENGINE CAR IS EXCELLENT BUT THE PROBLEM I HAVE HEATING IS NOT WORKING AND IS BLOWING COLD AIR ON HI TEMP TOO.HAVE GOT THE THERMOE STAT CHANGE AND SOME SWITCH AND VALVE ALONG WITH IT TOO.BEEN TO 2 GUY ONE HAS FLSUHED THE SYSTEM STILL NO DIFFERENCE AND ONE HAS TOLD ME HE RECKONS THE GASKET IS GONE HENCE IT IS NOT BLOWING HOT AIR.BUT CANT SEE THE OIL MIXED WITH WATER NOR THE CAR IS LOSING WATER NOR THERE IS OVERHEATING PROBLEM TOO.SO CAN YOU SUGGEST ME WHAT IT COULD BE.ALSO THE CENTAL LOCKING IS NOT WORKING ON THE REMOTE AND I HAVE OPENED THE KEY FORBE BUT THERE IS NO BATTERY WHICH I CAN REPLACE ANY SUGGESTIONS ON THAT.AND ONE MORE THING I GOT HEATED ELECTRIC SEATS APPARENTLY AND PASSENGER ONE HEATS UP FINE BUT THE DRIVER SIDE NOT HEATING UP WHAT COULD THAT BE?THANX HELP WILL BE MUCH APPRECIATED CAUSE NO ONE IS SURE AND IF I GET THE GASKET DONE UNNECESSARILY THEN ITS GOING TO COST ME A FORTUNE.

[markey mark]

try flushing the heater matrix first then chaeck all vac pipes ! wont be head gasket very rare on v6s ! battery in keyfob is a cr2032 iirc get one and switch ign on then press buttons on fob to resync ! seat heater is common fault bud  not easy to fix  

[Welung666]

Hi Zee, firstly please stop shouting! It's to early in the morning for all that, ta

Very unlikely to be the head gasket as they rearely go unless driven for a while while over heating. More likely to be your HBV or a vacuum fault. If your guy has changed them then a few reverse flushes, both ways through the matrix would help. Easily done from the engine bay with a hose, no need to remove much. Your key does have a battery in it for the RCL, not sure how to change them though as mine is the earlier seperate fob. Heated seat failure is normally the element in the seat itself. If cloth seats you can get replacements but leather seats have them stitched to the leather, although it is possible to fit the cloth seat type underneath the broken on in your leather seat. HTH

[nick v6]

check vac pipes
ive sorted mine by putting the vac pipes the right way round
its a bit of a pain but pretty straight forward once you get your hands dirty

[jonathanh]

Right - first test: run the car up to hot temp, turn the heating on.  then remove the trim above the pedals and locate the alu heater matrix pipes coming through the bulkhead to the left of the pedal area.  If they are both too hot to handle then you are hetting heat to the matrix.  This means your problems lie in the air dist unit.  If you are not getting heat to the matrix then disconnect the vac to the HBV.  If you are still not getting heat to the matrix then chances are the HBV is fitted wrongly.  

[ZEE]

hi
thanx guys for your responses!!!! i did manage to find a battery in the other key forbe but the battery holder is indepenedant means it is not actually holding on to nething.and what is HBV i am not  atechnical man so please bare wiht me.how do i flush the system?well the guy said he done some fluid test and it is showing that the water is changing color hence the gasket is gone.so suggest me how i can confirm this please.and my car is automatic if that helps to determine nething.

[jonathanh]

update your profile so we can see where you are.  maybe someone close by can take a look.  I doubt it is the HG.  Typical of a garage to suggest the most expensive thing if thay cannot find the problem.

[flevoman]

Last week my car's heating  did not work either
Only the first two minutes, after that cold air, bbrr, even with the settings on 28 degrees centigrade.
It was the outside temperature sensor, just 15 euri.

[ZEE]

hi #
i am in east london ilford. well i m sure the guy who had a look not specialises on vauxhall there more gemran car specialists.so suggest what i shud do?but cn u actually have problems with heating becuase of headgasket too?everything seems to work fine just that its blowing cold air at hi temp.help me its making me crazy lol and headgasket just doens not seem the problem to me cause car is driving excellent.so ne suggestions or help pls let me know email me (***mobile number deleted***)

[jonathanh]

um - probably best not to post your mobile number.....

have you tried the first check as per my earlier post?  post back what you find and we can help you to the next step

[fife_omega_v6]

hi #
i am in east london ilford. well i m sure the guy who had a look not specialises on vauxhall there more gemran car specialists.so suggest what i shud do?but cn u actually have problems with heating becuase of headgasket too?everything seems to work fine just that its blowing cold air at hi temp.help me its making me crazy lol and headgasket just doens not seem the problem to me cause car is driving excellent.so ne suggestions or help pls let me know email me. (***mobile number deleted***)

Have you checked the heater pipes to the matrix inside the car,positioned to the left above the pedals youll have two alu pipes are they both hot {hardly touch} or warm ..my matrix is blockedat the moment and 1 pipe is blistering hot and the return pipe is warm, and i only getting cold air into the cabin, gona flush matrix tommorow hopefully.....

[ZEE]

how do u flush?is rad flush from halfords works?

[fife_omega_v6]

dont quite know yet the best way im waiting for a answer on this also will let you know tho, its looking like you remove the two hoses going through the bulk head and hose water through each inlet

[jonathanh]

yep - that's basically it.  disconnect the hoses at the bulkhead and get a gaqrden hose onto one.

ZEE- the key to this is to logically identify your problem and then fix it.  It looks like your garage has tried the change this part and see if it works approach, which is much more costly.  Before flushing your heater matrix, determine if it is the problem.  If the matrix is heating up and your problem is the air dist unit, you will waste time/money/effort and get more fed up.  

[ZEE]

hi understand wot u mean but the only thing i am concerned is can the headgasket be the cuase of the problem though?cause i been told its the head gasket which is cuasing the problem bouthg the car cheap and then if i have to spend on headgasket then not worht it.the guy i bought it form not responding either.well will look into it and see but the other garage i left it with did actuallyy flush the system though.and is HBV  same as thermostat?

[Andy B]

......and is HBV  same as thermostat?

No. Heater By-pas valve lives just behind the driver's side of the engine, just under the scuttle. The thermostat lives right at the front of the engine in the middle of the V .... barsteward to even see, let alone change.  

[jonathanh]

Very very likely that it is not the head gasket.  if you've got no water loss, no over pressurisation of the coolant system and no large amount of mayo in the oil filler cap then it is not the HG.  

If you bought it privately, why would the guy you bought it from respond?  He's got your money now and he doesn't want the car.  Plus you've had two different 'mechanics' play around with it.  

[ZEE]

hi jus checked the pipes under the skirting at far left could feel 2 pipes which were really hot?so wot next?

[jonathanh]

right.  this means that you have heat in the matrix.  It is not the HG, HBV, thermostat or anything like that.  Itr is possible that the flow in the matrix is restricted but then you get slightly warm air not hot

Do you have climate control or standard aircon.  If you have climate, reset the servos (set out in the car handbook - sorry I don't have climate myself so can't tell you exactly how to)

If you have standard air con then you will need to start working on why the air dist unit is not giving you heat. Could be a multitude of things from controls disconnected to one of the internal flaps jammed

[hotel21]

Headgasket failure is rare but not unheard of on the V6's.

HBV is the Heater Bypass Valve which controls the flow of hot water into/out of the heater matrix (small radiator) in the car.  It is operated by vacuum through narrow bore plastic pipes.  They regularly fail, one way or another.

The thermostat is the device which initially restricts the flow of water through the main vehicle radiator in order to get the engine up to running temperature quickly and, thereafter, varies the flow through the rad so as to help keep the engine at its optimum running temp, assisted by the cooling fans as and when required.

Climate control is reset by holding the auto and off buttons in for several seconds with ignition on.  You will hear the varuious servos etc resetting (hopefully) and if it works, is a cheap quick fix.

[ZEE]

the system is not responding its climate control.shud i pop it to vuaxhall garage?

[jonathanh]

pop into vauxhall??  We'll the general experience here is no.  If you have now identified that it is the climate control playing up, your experience of mechanics to date (including diagnosingt he HG as failed) should indicate that consulting another highly trained specalist (cough) is perhaps not the best idea

when you say not responding, give us more of a clue?  in what way?  what are the symptoms?  I'm hoping someone else can help here  I know nothing about the climate system but someone here WILL be able to help

[fife_omega_v6]

you say both pipes to and from the matrix are hot they should both be take your skin off hot both of them, if they are your air disy box is capoot,ps thats from a £90.00 an hour vaux mech

[ZEE]

well the pipes i needed to check were under there skirting above the pedlas on the driving side?and my system is climate control i tried to reset the system by holding on to auto and off buttons at the same time but cant see or hear ne thing happening how shud it reset itself?wel do u think i shud just get it checked by the vuaxhall ppl and not get the job done .itws just getting to me now slowly.also the key i checked the bracket in which the battery sits is of the chip can i just solder it agian will that fix the key?

[ZEE]

hi can any one tell me one pipe is hot the other is cold wot could that be?and my rare heated seats and the driver heated seat is not heating up.also my ciggeratte compartment by the gear stick is broken what cN I DO ABOUT THAT ?