Thread: Disco 1 problems, where do I start.

have you checked under the hood when the car has had a run? i.e the coolant system is under pressure...sometimes leaks can occur but are only evident under pressure and sometimes not evident at all if its leaking/spraying/misting on to an area which is hot causing it to evaporate quickly.

have you checked for staining around the engine bay?

4L per day - how many KM per day are you doing and what sort of driving?

That's a HUGE consumption rate but knowing the distance per day would help. If it's not changed the way it runs, I'd be looking for a conspicuous leak - hoses to and from the heater matrix (up on firewall), to and from radiator, to and from the coolant tank. Does it park it's ground when running or parked when hot? As Dullbird suggested, check engine bay for signs of leaks. If it contains glycol it should be very easy to see where it's been spraying.

The heater relies upon warm coolant, so if you're out of, or low on coolant you won't have any heat to exchange. There's also a chance the heater matrix has split.

When you say " no water in oil" is that definite ? I hate to say it but I'm thinking head gasket.

Originally Posted by MacMan

4L per day - how many KM per day are you doing and what sort of driving?

That's a HUGE consumption rate but knowing the distance per day would help. If it's not changed the way it runs, I'd be looking for a conspicuous leak - hoses to and from the heater matrix (up on firewall), to and from radiator, to and from the coolant tank. Does it park it's ground when running or parked when hot? As Dullbird suggested, check engine bay for signs of leaks. If it contains glycol it should be very easy to see where it's been spraying.

The heater relies upon warm coolant, so if you're out of, or low on coolant you won't have any heat to exchange. There's also a chance the heater matrix has split.

Checked under hood and under dash,no evidence of coolant loss anywhere, had it pressure tested, can't find any leaks, replaced a suspect heater hose that wasn't leaking just to be sure but no luck. It only travels 250 k per week. I'm baffled as it has not lost power and does not get hot. Wish my speedo worked as well. Lol. Thanks for the input, I'll keep digging, I'm bound to find something

Originally Posted by roddles

Can't find any leaks, starting to run on 7 first start of a morning but comes good pretty quick,

It has coolant in a combustion chamber. Blown head gasket or slipped liner.