[W126 Coupe] ASR and Emissions Testing

[Steve Nervig]

On Dec 2, 2011, at 4:51 PM, Richard K. Hallberg wrote:


> The tip worked.  Passed emissions with room to spare.  Arrived, turned off ignition, removed single philips-head screw, depressed spring-latch & lifted connector latch-end first.  This was really quick.

> 

> Richard

> 

> On 12/2/2011 4:14 PM, Jonathan Hodgman wrote:

>> Rich,

>> 

>> You can also pull the cover on the ABS/ASR module and pop out the relays, takes about 3 min to do..:)

>> 

>> Jonathan

>> 

>> On 12/2/2011 3:39 PM, Richard K. Hallberg wrote:

>>> In Atlanta, GA the emissions test stations perform a programmed test with the rear wheels sitting on rollers (like a dyno).  My 91 560sec nearly jumped off the rollers with the ASR defeat switch on or off.  By pure luck, I found in the 126 Chassis & Body Manual a note on page 1223 in section 42-0810 that mentions that  "The connector from the ABS/ASR control module (N30/1) MUST BE DISCONNECTED before driving on to the performance test bench or speedometer tester".  I don't recall any mention of this on mbcoupes or BenzWorld in the three years I have been a member.  Any thoughts??

>>> 

>>> I will try this trick at the emission test station and report back - hopefully works.

>>> 

>>> Richard Hallberg


Richard, I'm curious - you called it an ASR defeat switch. Is it a real defeat switch or is it the snow chain switch on the dash? If the later, that switch does not shut off ASR, it just modulates it a bit.

Regards,
Steve