XSeries-forum

ChewingBacca, I could be wrong but I can't imagine it is down to the control unit, not if it fails with direct 12v applied to pin1 also, I don't have a MFD in my X5 so my TNR would be different anyway. In the 12v pin1 operation the HACC has no control of the Webasto so it would not be able to shut it down. The BMW kbus line from the Webasto is only to tell the HACC to turn on the internal fan blower and report errors I have read.

As a test I would use the scanner to disable the OBC option, reset the error code in the HACC unit, then try activating the heater using the 12v pin1 approach. When it fails scan the HACC and se if you have the same error.
I am no expert on the Webasto but you error looks like its the Webasto reporting one back to the HACC, so the "parking heater locking valve" must be part of the Webasto itself and faulty.

I'm only taking a stab here but that error looks to me like one you would get in a normal central heating boiler. i.e. the heater is firing up but the "thermocouple" is not working/detecting the flame so it shuts down.

take a look at this http://www.techwebasto.com/heater_main/ ... 63378A.pdf section 2.3 Burner Insert, and 6.3.1.1 Glow Plug/Flame Sensor Resistance Check. and this http://www.rover-club.net/graphics/manu ... g_Tree.pdf

I wonder if your Webasto is actually working at all, I know it is there to do the PRE HEATING cycle first start of the cold morning but I wonder if we would notice if it wasn't actually doing it.

Another test could be ot disconnect the electrical plugs from the Webasto in the morning and see if the car starts and any other error messages are generated.

With the scanner I have only seen one error in my HACC that "undervoltage cutoff" from the Webasto when my battery was low.

Hope this helps.

Just to confim yes mine is working for the OBC timer function used again this morning and ran for 30mins before cut off.
ChewingBacca, if you are under warranty why don't you say that your car is being really hard to start on these cold mornings as see if they will take a look at your Webasto....

Thanks for your help with this mcc05.

Tomorrow I will try all the possibilities you posted and report back.

This is the OBC and heating controller I have fitted.



Mcc05 I printed your last post and systematically tried the option along with every permutation I could think of. Still will not continue to run.

Pulling the connectors off the Webasto throws a second error "Additional heater" I guess the check did not find what it expected to see. The car will still start up fine.

The Webasto is definitely working when the car starts, evident by hot fumes from the baby exhaust under the passenger floor area.

IIRC the auxiliary heating only supplies the cabin heating circuit and not the engine cooling. If this is correct there may be a valve that separates the two and it is this where my problem lies?

Anyway for now it 's back to starting the car to warm up on the frosty mornings. A quick tip, start the car>hit the central locking on the centre console>leave by the drivers door>lock the drivers door with the plastic key. Two cars got pinched in my village last week while unlocked cars were warming up.

Programmed a list of functions with MCC05's scanner. TV on the go, beep & flash when arming and disarming, cold checks off to stop LED's strobing, BT name, I would have liked DRL on the halo's but this doesn't seem possible.

ChewingBacca,
Well I've looked into it a bit more on realoem, there seems to be three different configurations for the parking heaters in our X5






Two do contain electronic water valves and one does not, I will check which config. mine is later, is yours one with a value?

Ok mine is diagram one, with a water valve directly below the parking heater.

Chewing Bacca you could test the connections to this I suppose, or what I will do when I get my scanner back is disconnect the wiring plug to part 4 in diagram one and see if a can generate the same error as you.

It's too dark to check right now but will have a look tomorrow.

BTW where are you getting the diagrams from? RealOEM HERE are different viewing angles.

edit:

Judging by pic1 taken in the dark it looks like diagram 1. mcc05 does yours look like this?


Pic 2 shows the valve.

HI I have the same scanner as your using but I can't work out to disable the strobing of the lights. I can't find the cold or hot check options. Can you tell me how you did this?

Thanks

In page 1 hit LCM>coding data>light coding.

Disable cold check only.

[quote=""ChewingBacca""]In page 1 hit LCM>coding data>light coding.

Disable cold check only.[/quote]

Thanks mate but for some strange reason I dont have that option on mine, dont understand why when you do.

viewtopic.php?f=8&t=806&p=8679#p8679

Thanks

ChewingBacca,
Sorry will take another look tonight, and confirm. My girlfriend ran off with X5 this morning due to it being nice and warm and defrosted, left me with the other ice block car

gareth82 I have posted in your thread to keep this one on topic.

mcc05

....nice and warm and defrosted

You're just rubbing it in now.

hi all, i have fitted the remote start kit to my webasto via maplin rf box, however i work down on a gas plant and come 6 in tge morning when i finish work its just no good as i am unable to activate it via the remote, so its a cold drive home. is anyone who has bought the scanner tool, as in which enables aux heating, willing to rent their scanner out?? if so could yku please pm me etc. i have paypal to offer immediate money transfer etc. many thanks

jon


Sent from my iPhone using Tapatalk

BL02WAS happy to rent mine out PM me.

mcc05

....nice and warm and defrosted

You're just rubbing it in now. [/quote]

ChewingBacca
Sorry not rubbing it it at all, just showing that sometimes having a working heater means you lose the car

Well I've fitted the remote kit from maplins and guess what!! No joy!! No lovely heater to warm my car!! Can't work it out, 12v feed to pin1 is good, battery is 2 months old. I have tried putting paper clip down the connector and splashing 12v straight on with no joy, although I cannot guarantee that I'm making contact where I should as it is quite thick compared to a safety pin end. Also, with engine started, i saw no fumes out of the webasto exhaust. The unit itself gets very warm but I see no fumes out the exhaust?? I did try this when engine still had heat in it from previous drive earlier, and no pre heating needed, would that affect the webasto starting when engine first run?? Any help appreciated.