View Full Version : new bus: what are these switches?

01-13-2013, 07:46 PM
Hello all, we picked up our new 'sprinter' over the weekend. She's a VW Crafter 50, built by VW officially as the Hannover Bus, fully trimmed and kitted out as a 14 seat minibus. I'm told in 3 years VW has sold 3 of these in the country!


She drives nice, although I must say I was expecting a bit more power! Also has a bit of a thirst, uses double of what my current bus uses on the highway, although it was a very very hot day in Australia over the weekend



For the first time I may leave this vehicle alone and not change the wheels and lower the suspension. She will be the new church bus and will be used to take young people out on day trips, to the airport, charter work, camps etc. Perhaps a bit of sign writing, a new sound system, a software reflash, air intake would help it a bit


Can anybody recognise the switch on the top left? I have read through the owner's manual and it does not mention it. Press it and nothing really happens??


And also this rotary switch under the headlight switch... I can't figure out what it does either


Looking forward to contributing to this forum and tinkering around with the new bus :thumbup:

01-13-2013, 07:52 PM
sorry I can't get my image tags to work!

01-13-2013, 08:03 PM
Here in the US, that would be the "Booster Heater" switch... it heats the engine coolant when the exterior temperature is below about 4 C, until the coolant gets up to 180 F (um... 80C?).
If the ambient temperature is above +4 C (as +44C definitely is), then the booster heater will not switch on.

I haven't a clue about the knob...

p.s. don't they supply owner's manuals with those things?

01-13-2013, 08:03 PM
I'm sorry I can't say for sure as some Sprinter hardware is different from the Crafter's
You might have to search out a Crafter forum for more info.

My guess on the top left switch is some type of heater, be it seat warmer, auxilliary REST heater, windshield defroster, mirror defroster etc...

The rotary knob may be the headlight angle/ level adjuster , just guessing is all.

Your seller should tell you, best of luck

01-13-2013, 10:22 PM
the other knobs/dials dont look OEM

the red backround looks MUCH better than the black backround we have here in the USA from MB

01-13-2013, 11:51 PM
The owner's manual doesn't explain what those buttons do. But I am guessing it's some sort of auxiliary heater for the water for the first one, and the rotary knob is some sort of invisible setting for stealth. The heating one was also in the motorhome we rented in NZ, but the other switches and knobs I think would be part of the bus fitout

I can see the images when I am not signed into the forum, but as soon as I sign in, the images disappear and become links. Why would that be?


01-14-2013, 01:16 AM
some of those look like home brew....can you ask the seller?

01-15-2013, 12:11 AM
the 11 position rotary switch might be a performance tuner chip.


01-15-2013, 02:37 AM
the 11 position rotary switch might be a performance tuner chip.

...or wolf-whistle selection switch for a musical horn?


01-18-2013, 05:20 AM
If this was a custom upfit, find out who did the upfit and inquire. there should be documentation somewhere - you don't just modify a sprinters' wiring or electrical system.

01-18-2013, 11:23 AM
This is for releasing the smell of bacon... that's not factory.


01-18-2013, 02:53 PM
bacon smell switch...........

my 08 came stock with this switch. never knew it was for the smell of bacon, BUT when making bacon in the van, i DO turn this on to warm my buns (and hers) !! especially first thing in the morning...brrrrr!

any other aromas available??

01-20-2013, 07:36 AM
no... it isn't a bacon switch, tried it out!
The other one seems to be a voltage potentiometer, tried to trace the wiring but too many mosquitoes around and gave up

01-20-2013, 08:17 PM
Looking at the switch panel, the black toggle switch next to your mystery switch is non-standard,
i'm pretty sure the amber light just to the left of the knob is non-standard, too.

I fear you suffer from "original owner creativity"

(perhaps the knob dims the interior lighting? a fader for rear speakers?)

good luck

01-24-2013, 12:23 AM
Dick you were spot on
one was a volume control for the rear speakers, and the other was a dimmer for the passenger lighting (which makes almost no difference)
mystery solved!

04-29-2013, 12:05 PM
the bus got its Oettinger software remap
now it goes a bit better :-)

05-01-2013, 01:28 AM
"These knobs go to 11". Whoever put that knob in was pretty funny. And obviously a fan of the film This Is Spinal Tap. Best volume knob mod ever!