Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: chrisr on 24 February 2026, 21:02:01
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Is there a step by step guide to replace the radiator on a 2002 2.2 petrol? I've been putting it off for a while now but really need to get it done soon. Is there anything I need to watch out for?
Thanks.
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No aware of a guide, but 4 pot should be easier than V6 due to less intake stuff to remove.
Its a case of draining, and just working your way through. If its an auto, you will need to undo the auto cooler connections, and some cars have the A/C condenser pipers stupidly going over the top of the rad, meaning they have to be disconnected as well.
From memory, its:
3 coolant pipes
2 electrical connectors
2 autobox cooler pipes (if auto)
1 pair of A/C lines if they go over top of rad - if they go to side, you can leave undisturbed
The rad is held in with a large clip each side at the top. you may have to remove the condensor screws at top to allow sufficient movement.
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The AC stuff can stay in situ.
The oil cooler lines are a single connection point. Simply unbolt it and tuck the plumbing end up by the expansion tank. Cover both ends.
Unplug and remove the fan shroud as the first order of business. The hardest part of the whole job is probably going to be getting the screws out of the top cover.
When you refill the system, climate to Hi on both sides with the fan to the lowest speed. Leave the cap off and let it idle. Once the fan kicks in twice, check the level and top up as required. Repeat with the cap on and call it done.
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Remember to fit the fan switch before putting the radiator in the car.
Ensure the sealing washer isn't stuck to the old radiator too...
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The AC stuff can stay in situ.
Not on all, as the A/C lines on some come over the top of the rad, and need the condensor/dryer removed before you can get at the rad. I can't remember exactly what variants/years this is on though.
But dead easy to check, as obvious once plastic panel is off :y