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Old 08-22-2000, 04:40 AM
Posts: n/a

Engine: M110.985... (Euro)

1)Recommended spark plugs?
(why, etc.)

2)Motor Oil Brand/Type/Viscosity?
(We have ETERNAL summer temps here,
68-95 deg. Fahrenheit)


'78 W116 280SE Euro (evenings)
'78 W123 300D (left in LA, for vacations)
'95 BMW 325i (weekends)
'84 Volvo 240GLM (cargo)
'95 Proton Wira 1.6XLi (daily driver)
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Old 08-22-2000, 05:50 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Use bosch W8DC0 plugs, or Beru equiv.
Oils vary from country to country so stick with a good quality that meets MB specs, & ACEA class A2 or A3 (API class SH/SJ). These engines use a bit of oil so 10w/50 or 20w/50 would be a good viscosity in your climate.
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Old 08-23-2000, 12:04 AM
Posts: n/a
Thanks M.B. Doc.

Another potential ailment for the Doc's diagnoses:-

At cold starts, the motor seems to rumble SLOOOOWLY to life, a sort of stuttering/chugging routine for the first couple of minutes before it gradually smooths out. Once at operating temp.(87C), the engine is sweet sounding and as smooth as any 22-yr veteran could be.

This is an M110 280SE with Bosch K-Jetronic injection. Shouldn't the engine automatically rev-up sufficiently for the first few minutes on cold starts and gradually taper off to about 800rpms at/near operating temps?

Appreciate all feedbacks.

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Old 08-23-2000, 08:21 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
A too rich/or lean fuel mixture will cause this ailment. The warm-up regulator is responsible for this mixture control.
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