270CDI ages to warm up

[walsi]

What makes you say it is disconnected then??

 

[Danny DeVito]

Oh yeah sorry. There is no pipe on the left hand side. Cant really get a good look around it its too wet out

 

[V12]

Is this the the booster heater the guys with the 270cdi's are looking for?

Attaches to the block, see here :
Êàòàëîã

Don't think mine works either, but blocking off half of the rad as well as using the recirculation button helps LOADS!!

 

[Rory]

Is this the the booster heater the guys with the 270cdi's are looking for?

whitenemesis posted some tech docs on the 270CDi heater in post 73. Not sure if the one you've posted is another view of the same thing, or something else.


I used my car this morning for first time in a few days, and usefully it wasn't quite freezing so I was able to clear the windows, start and drive off without leaving the car idling.

Backing out of the drive, then few hundred (slow & slippy) yards to more main road and by the time I got going on that (3 mins on the computer) the air was getting warm (well, less cold!).

I think the 30 second comments may be somewhat ambitious but considering the way the heater works, like a kettle element in the block, I thinks that's pretty impressive. A PTC heater in the dash would be better, but things move on.

Once on the main A road, I have about 2 miles to run then there's a mile up fairly steep hill. By the time I got to the top of that the engine temp was 60C although it then took a long time to get to its normal temp of 85C.

 

[Danny DeVito]

So really then there is nothing wrong with it and we have been wasting our time even thinking about it ?

 

[Rory]

So really then there is nothing wrong with it and we have been wasting our time even thinking about it ?

I wasn't the OP and this thread has confirmed once and for all that the booster heater in the C270's (and presumeably some other models/engines) is NOT, despite many people's insistance, a diesel powered heater!

 

[Danny DeVito]

I wasn't the OP and this thread has confirmed once and for all that the booster heater in the C270's (and presumeably some other models/engines) is NOT, despite many people's insistance, a diesel powered heater!

The 2004 model shows a diesel heater for the C270
Anyway where are these insisters and we will will sort them out !!

A good smack of an STH should finish the job (if it's working)

 

[whitenemesis]

I wasn't the OP and this thread has confirmed once and for all that the booster heater in the C270's (and presumeably some other models/engines) is NOT, despite many people's insistance, a diesel powered heater!

The 2004 model shows a diesel heater for the C270
Anyway where are these insisters and we will will sort them out !!

A good smack of an STH should finish the job (if it's working)

On the C270 -

The booster heater is an electric element in the coolant and attached to the engine block. This comes in with the engine (under specific conditions)

The stationary heater is a diesel fueled burner and is mounted in the offside front wing. This can be started remotely (instantly or on a timer), does not require the engine or even the ignition to be on. It can also be started from inside the car via a switch, usually mounted on the centre console.

The car can have both fitted but the booster is standard and the stationary an optional extra. (quite rare in the UK)

 

[Danny DeVito]

As far as i can remember the booster , auxillary, stationary heater came up under a single heading on WIS for the older model. Is this not the case ?? Only the one item ever showed up.

 

[Danny DeVito]

can you keep us updated on what they find, I've got the same issue and same engine.

Is yours really packed up or just a little slo w?? The fault would show up under fault codes probably

 

[EdmundIJones]

I had an indi friend use his fault code checker just before christmas and it was reporting something along the lines of "Auxillary heater control module fault" or failure, can't quite remember the exact details.

Under normal driving it takes about 6 miles and 14 minutes to get any heat at all into the cabin. A little heat comes through when the engine temp reaches around 50 degrees.

Also, I'm 99% sure that the car used to have the options in the menu's to set the times for the auxillary heater to come on but they are no longer avalible. I can't work out if it's my mind playing tricks or if they have diserpeared because the there is a fault.

 

[whitenemesis]

Auxillary heater is the seperate Webasto diesel fueled heater under the FOS wing. this the heater that one can set heating times etc, for. Quite rare on UK cars

The Booster heater is the kettle element type heater (attached to the engine block in the coolant circuit) and is fitted to most C class diesels and is controlled via the cluster menu giving auto, off, on with A/c off. It only operates when the engine is running and the control module will only use as much power from the alternator as is not required to run other consumers.

 

[Danny DeVito]

I wonder how much extra power there could be normally. They must have put aside a bit for the booster heater when it is most needed in winter with blowers and stuff blowing. Sounds like it doesn't work anyway. Maybe you should look for the auxiliary heater too and if it's there fix it ! And maybe look to see if there is a booster heater where it's supposed to be , it should be there but you never know !

 

[whitenemesis]

I wonder how much extra power there could be normally. They must have put aside a bit for the booster heater when it is most needed in winter with blowers and stuff blowing. Sounds like it doesn't work anyway. Maybe you should look for the auxiliary heater too and if it's there fix it ! And maybe look to see if there is a booster heater where it's supposed to be , it should be there but you never know !

I have been wondering this since discovering how the booster works. A typical senario - glow plugs heat, start the car, demister on, rear screen on, heated seat on, lights on.... How much can be left for the booster?

That said my car is blowing warm air within 2mls driving at approx 25mph

 

[Danny DeVito]

Maybe EPC can give an idea of output for some different models ? Obviously it outputs 15 odd volts but current wise i don't know. I know it says whatever is left over but they must have left plenty there even if the gene output reduces over time. Its odd i always thought diesels would be really hot with compression etc My car is still off the road so i can't test how well the heating works, i think the stat is faulty anyway. Do you know do other diesels have heaters like this ??

 

[Danny DeVito]

Bosch Starters and Alternators, Electrical Spare Parts, The people you rely on, rely on Bosch.

3.8 kw for a high output bosch alternator

1.1 - 2.1 for a medium range. Do mercs use bosch ??

 

[rs2000]

Heater booster

Hi

The heater booster on my 2002 W203 doesn't work - does anyone have any idea if there's a fuse in the supply to the unit and where it might be located?

It's not located in any of the fuseboxes and not mentioned on the fuse designation sheet.

Thanks

 

[renault12ts]

I have one of those on my car...doesn't work either. But the fuse is noted in the fuse card. No point telling you which one, because its a different car, but it is mentioned. Strange if it isn't in yours.