[W126 Coupe] Tune up woes

[Shayegan, Richard]

Isn't this exactly why people say stick to the W9DC plugs?

 

________________________________

From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Dick Spellman
Sent: Wednesday, September 14, 2005 12:45 PM
To: mbcoupes at mbcoupes.com
Subject: [W126 Coupe] Tune up woes

 

A fellow SEC type with a 500 engine had the work performed to fix a
backfire problem by a local (non-MB) shop.  They installed new wire set
(the brand and set-up are just fine), a new cap and rotor (both mongrel
aftermarket not Bosch) and new plugs (my friend thinks they have 2
electrodes or more).

 

Anyway, the car starts and runs fine but, when on the highway doing 70
or so the engine just quits momentarily and then kicks back in.  This
all started 1,000 miles after the tune-up. 

 

What are your thoughts on a path to diagnosing the problem? Regards,


Dick

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