My wife drove from the station, about 20mins, very hot day. I got in the car and the idle is rough, which is new to me, but she says it's been like that for a while. I drive maybe a mile or 2, in slow traffic, the temp keeps going up (which is normal) but after a while I get a 'shooshing' noise at about 100-110c indicated on the guage (this is a standard Cinq btw), I also don't think I've heard the fan kick in, at some point the battery warning light comes on, but the engine keeps going. At some point while we're driving I turn the heater on full and the interior fan. I decide to abandon our trip, pull over, takes a good 5mins from the needle to come off the 110c point, it comes down to 95, I then drive home no traffic, decent flow of air. No temperature issues on the way home.
Now ever since the above, the battery warning light stays on after I start the engine up. With or without the engine running I have 12.5v across the battery, so it's genuinely not charging. The drive belt is intact and I think the altenator (which is new to the car, and I think a new part) is ok.
One other thing, I started the engine and ran it for 2.5mins, no change to the temperature of a radiator hose.
I think perhaps the thermostat has failed closed, and that caused the initial overheating, but it seems that something has failed causing the charging problem, but not being mechanically minded, I'm cluless as to what!? .
Any ideas, please?
Marc
Now ever since the above, the battery warning light stays on after I start the engine up. With or without the engine running I have 12.5v across the battery, so it's genuinely not charging. The drive belt is intact and I think the altenator (which is new to the car, and I think a new part) is ok.
One other thing, I started the engine and ran it for 2.5mins, no change to the temperature of a radiator hose.
I think perhaps the thermostat has failed closed, and that caused the initial overheating, but it seems that something has failed causing the charging problem, but not being mechanically minded, I'm cluless as to what!? .
Any ideas, please?
Marc