Analogue clock not syncing with Comand

[Clkrichard]

I have searched high and low for a solution to this problem !
I got in my 2004 CLK 320 cabriolet recently and noticed that the clock was about 12 mins slow - the time on Comand was right.
I have changed the time on Comand several times to various random times and the analogue clock resets but stays 12 mins adrift. I have just reset the Comand time to 12 mins fast and the analogue clock is now showing the correct time. I haven't yet driven the car to see if the Comand time resets from satellites.
Any thoughts on this ?

 

[Clkrichard]

Does nobody know how to fix this ?
I would prefer to not have to go to dealers if I can avoid it ....
Richard

 

[Alfie]

If your CLK is a facelifted version ie model year 2005 then the head unit and clock are or should be synchronised if the comand was factory fitted or retrofitted properly. This may well be the case for the pre-facelifted cars aswell. I havnt checked one lately.

During the coding process the synchronisation is setup for the cluster to take the time from the comand which gets its time from satellites. All you do is set the time zone/hour on the comand.

The last car I saw exhibit the same behaviour as this had a faulty clock.

 

[Clkrichard]

Thanks Alfie. As far as I know it's the original factory fitted Comand.
I am out in it tomorrow so I will see what happens as it syncs with satellites. Looks like a new clock though .....
Richard

 

[mr. shr]

During the coding process the synchronisation is setup for the cluster to take the time from the comand which gets its time from satellites. All you do is set the time zone/hour on the comand.

The last car I saw exhibit the same behaviour as this had a faulty clock.

I've just had a new cluster fitted in my 211 as old one died.
Took car in for SCN coding, but now I find the clock has to be manually set. It's not set according to COMAND.

Have they not coded it correctly?
I thought SCN coding basically set everything back to factory configuration?

 

[Alfie]

I've just had a new cluster fitted in my 211 as old one died.
Took car in for SCN coding, but now I find the clock has to be manually set. It's not set according to COMAND.

Have they not coded it correctly?
I thought SCN coding basically set everything back to factory configuration?

There is a setting which needs to be turned on. SCN coding should set it all up provided the cluster and comand are both SCN coded.

 

[mr. shr]

There is a setting which needs to be turned on. SCN coding should set it all up provided the cluster and comand are both SCN coded.

So I need to go back to them and tell them the COMAND unit also needs SCN coding?

Doesn't SCN coding just do the whole car?
Or do they specify which items are coded individually?

 

[richard]

SCN coding is done on individual control units. As time goes on, more and more control units have to be SCN coded (rather that lots of settings to be manually set if your old control unit is dead)- which ensures of course that they are set correctly as there is no room for operator (i.e technician) error.

If your cluster was a type that needed SCN coding, then this would be correct already, so therefore it is not one.

So, what they need to do on your car is to set 'Navigation' to 'Present' in the control unit adaptations menu for the Instrument cluster. (This is done using Star Diagnosis.

As they didn't get it correct last time, they should take a good look at all the other options to ensure they set them correctly too ..
(Things like Phone, Folding Mirrors (if you have them) etc)

Richard

[Edit: PS on W211, COMAND is SCN coded from MY2009 onward (ie NTG2.5 hard disk COMAND) but not before that]

 

[Clkrichard]

As I suspected the time on Comand reset itself while I was out today and the analogue clock followed it and went back to being 12 mins slow.
The odd thing is that the analogue clock works otherwise .... but stays 12 mins slow. To my slightly untechnical mind that suggests that the clock is working but the "feed" from Comand is defective.
Looks like a trip to MB in Chichester to get it fixed ...

 

[mr. shr]

If your cluster was a type that needed SCN coding, then this would be correct already, so therefore it is not one.

So, what they need to do on your car is to set 'Navigation' to 'Present' in the control unit adaptations menu for the Instrument cluster. (This is done using Star Diagnosis.

As they didn't get it correct last time, they should take a good look at all the other options to ensure they set them correctly too ..
(Things like Phone, Folding Mirrors (if you have them) etc)

Richard

[Edit: PS on W211, COMAND is SCN coded from MY2009 onward (ie NTG2.5 hard disk COMAND) but not before that]

Richard,
My 211 is a 54 plate so it's pre-facelift. . The instrument cluster COMPLETELY died on me. The replacement clusters are designed for the facelift 211s and these require SCN coding. (Spoke to three dealers and each said cannot source non SCN clusters).

So fitted new cluster and took car to dealer for coding.
After coding, I do get nav arrows in cluster along with phone functions.
Would this not suggest they have done as you said above? Or have they done only half the job?
When I call tomorrow only get service desk, so need to know exactly what to say.

Help and guidance appreciated.
(sorry for high jacking)

 

[npuk]

Richard is saying is SCN coding for Comand can only be done from MY09 when they introduced the hard disk Comand so it is only required if you have Comand NTG2.5.

Post facelift W211s upto MY09 would have had SCN clusters but Comand NTG1 which doesnt need SCN coding.

 

[mr. shr]

I see, so my COMAND doesn't require SCN coding, but hooking up to STAR?
Is that what I tell them when ringing tomorrow?

 

[richard]

In Key setting 3 settings menu (in the instrument cluster settings, using Star Diagnosis), they need to turn on time sync with head unit setting. Then it will sync. There is also a way of turning off the manual time setting menu, but I can't remember how to do it (although with a car in front of me I could), and maybe it turns off if that other setting is on.

Key setting 3 is the default key if "key dependence" is not enabled (and they only enabled it for around 2002/2003 as the feature caused great confusion because different car keys then caused different memory settings and cluster settings etc but the clusters all support it but Star Diagnosis leaves it off)

Richard

 

[mr. shr]

I'm sure I've seen (in the past) a setting that enables syncing with the head unit. Can't remember if it was my car, or my Mum's and can't remember if it was a setting in the cluster menus or the head unit itself.

Either way, I can't find that option now on either head unit or cluster in my 211.
If you could remember the way to do it without visiting Stealer, all the better.

 

[mr. shr]

In Key setting 3 settings menu (in the instrument cluster settings, using Star Diagnosis), they need to turn on time sync with head unit setting. Then it will sync. There is also a way of turning off the manual time setting menu, but I can't remember how to do it (although with a car in front of me I could), and maybe it turns off if that other setting is on.

Key setting 3 is the default key if "key dependence" is not enabled (and they only enabled it for around 2002/2003 as the feature caused great confusion because different car keys then caused different memory settings and cluster settings etc but the clusters all support it but Star Diagnosis leaves it off)

Richard

I've been playing around with DAS Sim but under key 3 there isn't an option to select sync with head unit.
Any idea what I'm doing wrong?

 

[richard]

The SIM is not the same as the real running one.

On some cars you may have to enable the Time Sync with Head unit menu which can only be done with developer mode

Richard

 

[mr. shr]

Ok thanks Richard.

Better get practicing my German then.

 

[Clkrichard]

Finally fixed ........ A complete new instrument cluster ....