Hot air from vents when cold - w124 300d '96

Page may contain affiliate links. Please see terms for details.

bigyin1

Active Member
Joined
Aug 26, 2008
Messages
334
Location
Daventry
Car
'96 W124 300D
Having driven the last few mornings in the cold, I've cranked the heating up straight away and noticed i'm getting warm air from the vents very quickly, within a minute or two. On other cars i've owned I've had to wait for 10-15 minutes before getting anything resembling heat out of the vents....

Is this usual behaviour? If so how does it do it?
 
Having driven the last few mornings in the cold, I've cranked the heating up straight away and noticed i'm getting warm air from the vents very quickly, within a minute or two. On other cars i've owned I've had to wait for 10-15 minutes before getting anything resembling heat out of the vents....

Is this usual behaviour? If so how does it do it?
I don't know what you're used to but my w202 produces hot air within about 30 seconds!
 
mmm maybe it's just me then. Previous cars were VAG 1.9 TDi's/1.4 TDi and Peugeot 2.0 HDi's, i just remember them taking ages to warm the car up..
 
Hi
Thats ok, I've had a few of these they are all the same, obviously designed for home market winters:)

Phil
 
Diesel engines produce less "spare" heat than petrol engines so it can take time to get hot air from the heater

The Multivalve diesels have an oil/water heat exchanger which dumps heat into the water system (and so the heater) when the engine is cold thereby getting round the problem

Nick Froome
www.w124.co.uk
 

Users who are viewing this thread

Back
Top Bottom