|
|
|
#1
|
|||
|
|||
Short Circuit
I have an '85 190E that just started exhibiting strange behavior. After I start it and turn on electrical things(radio, headlights, reverse lights) the headlights dim for a second and the radio blanks out. I shift into reverse and the same thing happens. If I start to drive and then hit the brakes, it loses electricity again. It usually straightens out after a few miles. I haven't checked the fuses yet. Are all those things on the same fuse? I don't lose total power, it's almost like a brown-out...
Jim
__________________
1983 300D Turbo 1985 190E 2.3 |
#2
|
|||
|
|||
Check the tension on your belt?
__________________
1994 E500 (MY SUNDAY DRIVER) 1993 190E SPORTLINE LE W/ M104 SWAP 1997 C230 2002 ML320 2000 BMW 528I (WIFEY'S CAR) "Excuses are crutches for the unfounded." |
#3
|
|||
|
|||
my boss had same problem on his 85 500 sel, ended up being the alternator.
|
#4
|
||||
|
||||
...or the battery is going south and can't maintain an adequate charge.
Keep us posted, Haasman
__________________
'03 E320 Wagon-Sold '95 E320 Wagon-Went to Ex '93 190E 2.6-Wrecked '91 300E-Went to Ex '65 911 Coupe (#302580) |
#5
|
||||
|
||||
...or an alternator "overcharging" problem has occurred, which could cause the same symptoms (as it had on mine).
Get an OVM and check the voltage across the battery terminals with the engine on (accessories off) and engine off. Should read 12V when engine is off and ~ 14.4V when engine is running. Anything much lower than this indicates a charging problem. Mine was an overcharging problem, and my voltmeter read 17.5V!!! If your belt tension is okay, you may just need a new regulator. Your car is an early enough model year that you can replace just that portion of the alternator (mine is internal, so I had to swap the alternator ). Typically, it may be that the brushes are worn...
__________________
2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#6
|
|||
|
|||
Brand new battery... so that shouldn't be it. I'll check the belt tension and voltage tonight.
I'm driving the 300D today and my wife has the 190E. The 300D won't shut off. I have that narrowed down to a vacuum issue.
__________________
1983 300D Turbo 1985 190E 2.3 |
#7
|
||||
|
||||
I've seen ignition switches cause similar strange behavior. Just a guess though.
|
Bookmarks |
|
|