|
|
|
#1
|
||||
|
||||
I have a W126/91 300SE. The economy/vacuum gauge is about 1/4 swing from max economy/vacuum at idle. It swings out a little more if the AC compressor is on. I can cruise on the freeway with a higher economy/vacuum reading. Does this mean anything?
Thanks, Sixto 91 300SE |
#2
|
|||
|
|||
Mine is the same as yours. I think this is normal.
__________________
SANDEEEP 89 300SEL 230,000Km |
#3
|
||||
|
||||
In my 1991 420SEL with 192K miles, the economy gauge rests comfortably all the way over to the left at idle. It moves slightly to the right when the A/C compressor is on. When I was having problems with the idle (sticky exhaust valve) the needle regularly moved one-quarter of an inch to the right during idle. Since the idle problem was fixed and the valve adjusted, the needle stays to the left. I don't know if this is true for all M-Bs or whether your model is a little different from the V8s. The fact that you can get a better reading at highway speed may be relevant, however.
__________________
Current Benzes 1989 300TE "Alice" 1990 300CE "Sam Spade" 1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007) 1998 E320 "Orson" 2002 C320 Wagon "Molly Fox" Res non semper sunt quae esse videntur My Gallery Not in this weather! |
#4
|
|||
|
|||
I have a '88 190E and was having the same problem. My culprit was a leak in the vaccuum line. Hope this helps. Seems like an easier problem to fix than the other.
__________________
1988 190E 2.3 (178,000) FastLane, PartsShop and this forum rule!!! |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Can O2 sensor be causing my poor idle problem?? | NDavies4 | Tech Help | 7 | 11-22-2004 07:26 AM |
photos of gauge cluster boost gauge, part 1 | sixto | Diesel Discussion | 2 | 03-20-2004 12:44 AM |
Economy Gauge | KenHeimbuch | Tech Help | 8 | 09-06-2003 11:10 AM |
300 SD idle screw | patsy | Tech Help | 5 | 12-04-2000 06:02 PM |
380SEC idle problem confusing me-help please | Michael Bushnell | Tech Help | 2 | 05-20-2000 09:18 PM |