[W126 Coupe] ? for markus, jono, or dick and/or anyone else

[Josh Allen]

Gary wrote:

> i forget what its called...it sits right up front on the engine.  the 

> markings say VDO.  i know you guys will know what it is...anyhow my 

> question is the one on my car has a part number the one i was going to 

> replace with doesn't although it does have a number 408.202/010/002.  

> this is the same number on original except for for the last number is 001.

>  

> also on one end of these parts there is a stamp, on the replacement 

> part its a circle with 02 and 6 above it.   on the original the circle 

> looks like a clock and number above looks like 7 or 1.  question is 

> are they compatable?  the replacement i believe came off of a 420 or 

> 560 sel.  i can't remember.

>  

> the other question...the electrical connection this VDO hooks up to 

> has the numbers 1 and 2 but the VDO doesn't have a corresponding 

> number?  does it matter how its connected.

>  

> oh one more thing...can these VDO's just be cleaned out with some kind 

> of cleaner?

>  

>  

> thanks

>  

>  


Gary,
Are you talking about the round part with two rubber hoses clamped onto 
it, and the two pin electrical connector on the opposite end?  That'd be 
the idle air valve. 

The cruise control actuator is also a VDO product, if I remember 
correctly,  but it has an arm with a ball at the end, and hooks to the 
throttle linkage, and is likely located near the alternator, rather than 
centered on the front of the engine like the idle air valve.


As to interchange, I don't know.  I've heard a couple of accounts of 
people having good results cleaning them of gunk, but I'm not sure just 
how aggressive a solvent or cleaner I would use in one, as they're not 
cheap.

-Josh