Yesterday, I took my 86 420sel in for state inspection in Texas. This dude was checking the car and took off the power steering fluid cap off while the engine was running. The car was running very well prior to this. Since then, the power steering is making groaning noises at idle and on extreme turn. Gets better after driving a while. Belt looks tight. I added more power steering fluid. Wasn't sure of the brand. Is it Dexcron II?

Well the problem is still persisting. I had a 450sl manual (not 420sel), it states to keep turning the steering wheel from side to side to bleed the system. Is this correct? Do I have air in the system? What to do next? Is it another system?

Thanks,
John

if you have already added ATF, i would flush the system post haste!

the car is supposed to have MB P/S fluid (Febi).

do a search, i just did this last week.

__________________
Jonathan
1998 S600
2001 E430
1994 E320
1991 560SEL
1994 Turbo R

P/S Maintenance

P/S Update

__________________
Jonathan
1998 S600
2001 E430
1994 E320
1991 560SEL
1994 Turbo R

I added a valvoline synthetic brand only half the reservoir. On an 86, how does one disable the fuel pump during this procedure? Stupid question, but if the fuel pump is disable, doesn't the engine need fuel to run during the bleeding process?

John