[W126 Coupe] 1985 euro version 500sec

[Dick Spellman]

Hi Jeff:

Where it's an 85, are you sure it needs to be emissions tested here in 
MA.  After all it's 20+ years old?  If they insist on the emissions 
test, I'd make sure your o2 is fairly new, add a can of Emissions + 
(WalMart), run a tank of Premium fuel only.  Get the engine warmed up 
with a highway run for 20 minutes or so, then go directly to the MA 
garage leaving the engine running until they are done.  You may also 
need to lean the lambda if you feel it's running rich.  You can always 
set it back to original spec afterward. 

Dial next to headlamp is the vacuum adjust for the euro headlamps.  If 
it's not been used in a while the adjusters in the headlamps may be 
stiff or frozen or you could have a vacuum leak at the switch or in 
either of the hoses feeding the left/right headlamps.

Headliner info is in the MBCoupes archives.  best to pull the pan and 
then clean up the old foam and try re-applying the fabric with 3M Super 
90 adhesive.

Rear speakers on the 85 are either a flat grill or the raised dome.  If 
it's the raised dome, I find it easy to pull the speaker enclosure 
towards you in the rear seat to release the front nylon plug nearest the 
seat back and the 3 rear plastic clips and one side clip nearest the 
rear glass.  Then lift it off.  The flat grill is just a few screws.

Where in MA?  Anywhere near Quincy?  I can set you up with a shop that 
does all my emissions testing if that helps.

Regards, Dick

jeffrey maniff wrote:

> Help!  Does anyone out there know how to pass an emissions test with a 
> 1985 Gray Market 500SEC as currently my emissions #'s are making it so 
> that it will not pass.  Is there a secret I need to know about or a 
> legitimate way in order to get the car to pass?  Also, does anyone 
> know what the dial is next to the light switch on the left side of the 
> steering wheel which has 3 positions.  I keep moving it so see what it 
> does but I can't see any change?  It may say in German as everything 
> else does but I do not understand the language.  Lastly, can someone 
> recommend what to do with a headliner that is beginning to sag and 
> pull away from the top of the car starting in the back seat area?  
> Should I use super glue or have it progessionally fixed?  Oops, one 
> more thing, how do I access my rear speakers (the ones that are 
> adjacent to the back window?  I need to replace them.
> Thank you for your input/insight/ and general knowledge and suggestions.
> Jeff Maniff  (massachusetts)
>
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