X5 Webasto not working

[oceantools]

Hi Folks

The Webasto aux heater on my 54 X5 ain't working. I've checked fuse F59 and it's fine. Any suggestions before i take it to my very expensive local dealer?

Many thanks.


OceanTools.

[sniff diesel]

Our trains are fitted with Webasto aux heaters, they generally are very reliable - the only problems with them are occasionally the thermostats fail and the carry on heating the coolant beyond the 78 deg C they're designed to cut out at, giving the cooling system a hard time trying to dissipate the excess heat. I'll ask one of our fitters tomorrow what other problems can occur if you like.

[oceantools]

That's very kind, Sniff. Many thanks.

[sniff diesel]

Is it getting fuel to it? Our train ones have their own fuel filter, it may have dissintegrated.

Is the electric water pump whirring away? If not the check the feed with a voltmeter if possible, there may be another fuse somewhere.

If the car's out of warranty then maybe try a Webasto service and supplying dealer to look at the unit, may well be cheaper and more clued up than a BMW franchised dealership.

[oceantools]

Many thanks, Sniff. I'll have a look at it and let you know what I manage to unearth....

[VX Foxy]

Glow plug? Webasto agent could fit a new one but BMW will want to replace the whole unit IME.

[sniff diesel]

VX Foxy said:

Glow plug? Webasto agent could fit a new one but BMW will want to replace the whole unit IME.

Is there a glow plug in there? Never knew that.

[oceantools]

Ah - thanks for the tip on the glow-plug. I will mention that to the local Webasto agent when I take the X5 in later this week. I'm sure they'll be impressed with my knowledge