Researching online suggests that it could be the oil cooler that has failed? However I've looked in the Haynes manual and it suggests that I need to remove the exhaust manifold, by first removing the complete exhaust system and then the starter motor and the radiator? It would appear that there is also an oil leak, possibly related or unrelated, as I can see oil spots on our drive and when I look under the car there is some oil collecting on the lowest point in the middle of the engine. I think there is some oil getting in to the coolant, but not very much, as it has a slight shiny film on it. I lost about a litre of coolant after the car had been driven at speed, but this seems to only be intermittent as after I filled it, it didn't go down for a few days and then when I got home from work a few days later I noticed it was dripping on the road and that coolant had been sprayed across the engine bay (left hand side of engine bay - passenger side). I'm still having problems with my Meriva's coolant, as it seems to be blowing out of somewhere. Any advice would be really helpful, as I've not done this before!

Is it possible to remove the hoses from the engine block to flush it without lifting the car or is this something that I need to get the garage to do for me? (I was trying to avoid paying out). The only problem is I do not have a car jack other than a tyre jack so struggle to get underneath the car, whilst it is on my drive. I am not sure whether to refill the system with antifreeze now or try to remove the thermostat to do a full flush of the engine block. The coolant that has drained out of the radiator is still orange/brown, as I assume that this is what is trapped in the engine block when I drain the radiator. I drained, flushed with garden hose and refilled with water, then ran the engine again for 10 minutes with heaters on as per instructions. I refilled using Holts SpeedFlush and water and then ran the engine for 10 minutes at full temperature. I drained the radiator from the valve and the coolant that drained was quite orange and had bits floating in it. On inspection the coolant appeared brown.

I recently noticed the engine coolant appeared to have a brown mousse floating on top of it.

Renault forum antifriz