hi guys quick question coolant level low keeps coming up on dash i have put over 10 litres of reccommended coolant in and still coming up the heating on passenger side blows cold even on hot but drivers side is hot footwell in passengers side was wet but dried up now due in garage at end of week bit wondered if anyone knew what might be

If you keep putting coolant in (10 Ltrs sounds a lot) and it’s still low in the reservoir, you are losing it somewhere. If it’s not in the footwell and not on the drive/garage floor, it must be in the engine or gone through it. Have you looked at your oil? Do you have excessive smoke out of the exhaust and maybe a lot of water pooling around the exhaust tips?

What engine is it? 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

i know thats what i thought oil is all good because i did wonder if it was head gasket but no water in oil i really hope its nothing serious

sorry no no water near or on exhaust and no smoke i put a large square of cardboard under car after filling it and left ovenight nothing on there

The only other thing I can think of is it’s leaking steam when at operating temp through a high pressure leak. Any other leak would show up as a puddle under the car.

There’s only a certain number of places it can go. Steam/water to atmosphere in the engine bay (damp patches, puddles, damp carpets in cabin) water entering the oil (murky oil), and water entering the cylinder (rough running, water pooling at the exhaust tips, larger volume of smoke/steam). I can’t think of any other way. You may have to check very carefully to see high pressure loss. 2019 5.0 SC SVA (Current)
2012 5.0 SC AB. Sadly written off by a campervan
23 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

The coolant takes circa 11ltrs to fill (i know because i replaced my coolant at the weekend)

do a search for heater matrix leak, i seem to recall seeing it as an issue.....