SL/SLC-Class (R107) 1971-1989 : 250SL, 280SL, 450 SL, 380 SLC, 450 SL, 380 SL, 560 SL

SL/R107: Engine surge when slowing down

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Old Jul 29, 2003 | 11:16 PM
  #1  
Jim Fitzgerald's Avatar
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From: Mequon, Wisconsin
92 300SE '86 560SL
Engine surge when slowing down

I've read about this somewhere and now my car does it. When slowing down off the freeway, the engine surges- increases RPM about 2k for a split second. What causes this and should I be concerned. Car is a 1986 560 sl with 74K miles.
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Old Jul 30, 2003 | 07:57 AM
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TriStar's Avatar
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From: South Florida
1986 560SL
serging

Were you using cruise control?
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Old Jul 31, 2003 | 10:48 PM
  #3  
Jim Fitzgerald's Avatar
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From: Mequon, Wisconsin
92 300SE '86 560SL
No, my cruise does not work. Don't use it anyway so don't feel like spending several hundred to fix the cruise.

When this surging occurs, I'm just slowing down on the exit ramp of the freeway.
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Old Sep 24, 2004 | 10:42 PM
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rudy100's Avatar
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Engine surge

...did you fix your problem? ...I also had an engine surge problem....replacing the fuel pressure regulator solved my problem ...good luck
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Old Nov 7, 2004 | 03:51 PM
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From: Atlanta, GA
96 S600 Euro, 91 560 SEC, 88 300TE, 87 560SEL, 86 560SL, 80 280SE, 64 Austin Healey 3000MIII
at what RPM does the engine surge? 560's are known for having an issue around 1500 rpm's...

Let me know

Jonathan
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