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77
Omega General Help / Re: tyres
« on: 25 May 2009, 21:11:33 »
Also... if the size you fit is NOT one that was available originally from Vx, you need to let your insurer know.
78
Omega General Help / Re: anti freeze
« on: 25 May 2009, 20:57:50 »Quote
will this mix affect the cooling cos it seemed to heat up v-quickly going over the mountain road to applecross
The maximum heath transfer efficiency of the mixed coolant is at around 2/3 Ethylene Glycol and 1/3 water. Higher EG concentration will see the heath transfer capability of the coolant going down.
This is because pure EG is thicker than water, so while it has better heat transfer properties (and higher boiling point), it will not flow as well as water and the overall effect on engine cooling will be reduced.
So 100% EG does NOT cool the engine better than mixed coolant.
Said that, for various reasons the recommended concentration is (as mentioned by others) 50%-50% which optimises various requirements such as lubrication and corrosion inhibition etc.
79
Omega General Help / Re: V6 Leaking!
« on: 11 May 2009, 21:35:57 »
The 'oily feel' could be water collecting some oil deposits while running down the engine. Or coolant that has traces of oil from previous oil cooler failure.
Omegas are prone to coolant leaks from the Heater Bypass Valve (HBV), which is at the back on the engine (driver's side), so worth checking that. Also, the oil cooler in the middle of the V at the centre of the engine can leak from the cover plate.
But first try to establish what it is that's leaking - if you can't identify the substance, check all levels i.e. coolant level, brake fluid, PAS fluid etc, see what's missing...
Omegas are prone to coolant leaks from the Heater Bypass Valve (HBV), which is at the back on the engine (driver's side), so worth checking that. Also, the oil cooler in the middle of the V at the centre of the engine can leak from the cover plate.
But first try to establish what it is that's leaking - if you can't identify the substance, check all levels i.e. coolant level, brake fluid, PAS fluid etc, see what's missing...
80
Omega General Help / Re: My turn (alarm problem)
« on: 13 May 2009, 18:14:13 »
One other sign that the Ni-Cd batteries on the sounder are on their way out, is an occasional series of 4 beeps from the engine compartment...
81
Omega General Help / Re: It passed the MOT.. Afew other bits to sort.. help
« on: 13 May 2009, 18:30:53 »
As said...
It is not clear however if the discs are also worn, or only the pads? You may get away with replacing just the pads if the discs are OK - the pads alone are just over a tenner.
It is not clear however if the discs are also worn, or only the pads? You may get away with replacing just the pads if the discs are OK - the pads alone are just over a tenner.
82
Omega General Help / Re: Squicky Belt
« on: 13 May 2009, 18:16:40 »
Not sure about the exhaust, but if the squeeky sound is from the timing belt tensioner that this needs to be fixed asap... when were the timing-belt and tensioner last done?
A slipping alt belt is not so bad, possibly worn and needs replacing, or not tensioned properly.
A slipping alt belt is not so bad, possibly worn and needs replacing, or not tensioned properly.
83
Omega General Help / Re: Tech 2 help.
« on: 11 May 2009, 21:47:48 »Quote
Some garages **may** have one. Its likely, unless Vauxhall specialists, they won't have the knowhow or the software to do it...
Been away for a while but some things never change...
TB still beat me to it....
Even you have to sleep some time, I'll have my moment yet 8-)
84
Omega General Help / Re: Tech 2 help.
« on: 11 May 2009, 21:43:57 »
Tech-2 is generally main dealer, few smaller garages keep one due to the (very) high purchase cost, but some members here have them and provide a very low-cost Tech-2 service as long as you are happy to travel to them...
85
Omega General Help / Re: abs / traction control lights back !!
« on: 11 May 2009, 21:41:38 »
Replace the rear brake light bulbs - best use original Vx bulbs at least for the first time to establish the cause.
Had this problem on a 1997 car some years ago
Had this problem on a 1997 car some years ago
86
Omega General Help / Re: Overheating and Water leak....
« on: 11 May 2009, 21:39:33 »Quote
Hi Mark,
Thanks for the reply, but the leak was coming from the front and was dripping from above the drain tap on the near side. The HBV is at the rear of the motor.....
Anyway, I stopped the leak with radweld (Not ideal...I know!) and done 250 mostly M/W miles today but its stilll over heating when in traffic...
Must have been the rad then? Well the sticky-tape method of using Radweld might hold it all together for a while, but probably not for very much longer...?
87
Omega General Help / Re: Overheating and Water leak....
« on: 11 May 2009, 21:28:09 »
If you had a low coolant message, then you are loosing coolant...
There are many possible reasons, which are not unique to the Omega, among which are a split hose somehwere, leaking/blocked rad, failing water pump, and even blown headgasket.
But a common weakness on AC models is the Heater Bypass Valve (HBV) which a plastic thingy and when it fails it can leak when the AC is on, causing massive coolant loss. It costs around £30 and can be repaced DIY, check the Maintenance Guides for more info.
There are many possible reasons, which are not unique to the Omega, among which are a split hose somehwere, leaking/blocked rad, failing water pump, and even blown headgasket.
But a common weakness on AC models is the Heater Bypass Valve (HBV) which a plastic thingy and when it fails it can leak when the AC is on, causing massive coolant loss. It costs around £30 and can be repaced DIY, check the Maintenance Guides for more info.
88
Omega General Help / Re: 100 mph speed limiter
« on: 09 March 2009, 09:45:16 »
Never heard of factory-fitted 100mph speed limiter
On any car, come to think of it!
155mph limiter, yes, of this I did hear
But 100mph? Sorry, no....
Anyway, I can say with certainty that none of my Omegas had such a device
On any car, come to think of it!
155mph limiter, yes, of this I did hear
But 100mph? Sorry, no....
Anyway, I can say with certainty that none of my Omegas had such a device
89
Omega General Help / Re: Whats the difference please Elite/MV6
« on: 09 March 2009, 09:14:16 »
As said, Elite more gadgets and higher trim level, MV6 stiff/lowered suspension and sports seats. BTW all Omega seats are Recaros, though different models...
What are the engine sizes? The 2001 might be 3.0, which means it was regsitered after 03/2001, and much lower Road Tax....
Also, is it ex-cop? many ex-plod cars were listed in the V5 as Elite etc but in many cases the cop spec is NOT the same as normal cars.
But other than the Elite vs. Vx issue, how are the cars otherwise, i.e. general condition inside out, mileage, service history....?
What are the engine sizes? The 2001 might be 3.0, which means it was regsitered after 03/2001, and much lower Road Tax....
Also, is it ex-cop? many ex-plod cars were listed in the V5 as Elite etc but in many cases the cop spec is NOT the same as normal cars.
But other than the Elite vs. Vx issue, how are the cars otherwise, i.e. general condition inside out, mileage, service history....?
90
Omega General Help / Re: Transmission Vibration
« on: 09 March 2009, 10:30:11 »Quote
Don't want to hijack someone elses thread, but what does the update do on the Auto box ECU, don't think mines has had this done, had an oil change at 55k, all seems ok with it, no probs!!
Rob
Car has to be mini-facelift and upwards (98+), and it will make a noticeable difference to the way the autobox shifts gears. Much smoother, and the car feels stronger.