[W126 Coupe] [W126 coupe] Few problems with my SEC

[Dan Landiss]

It may depend on exactly which regulator you were sold -- they come in 
different charging voltages. The optimum voltage is 
temperature-dependent: <http://landiss.com/battery.htm>. Even at 60C 
under the hood it should charge at more than 14.0VDC and 14.2VDC would 
be better if you have a lead/calcium or hybrid battery.

Check the ground strap from the battery to the chassis. Remove it, 
scrape the surfaces, put it together with a star-shaped lockwasher 
digging into the sheet metal.

Body roll on turns -- it was designed as a luxury car, not a racer. If 
you want to corner fast get the alignment shop to set the front camber a 
half-degree or more negative.

on 3/26/2011 4:35 PM usef nazzal wrote:

> Hey All

>

> alright ive recently bought a 560 SEC and managed to do the servicing 

> needed and car drive great however there are a few issues:

>

> 1) Electric power seems to be weak.. ive already replaced the battery 

> and the regulator (located at the back of the alternator)... but still 

> there seems to be an issue. for example if the radiator fan is ON and 

> i turn down the windows i can sense that that the fan slows down a 

> little bit.. also when the engine is off the roof light flickers with 

> the red seat belt light. what might the reasons be.


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