SL/R129: Difficult to start when engine is hot
Thread Starter
Newbie
Joined: Mar 2011
Posts: 5
Likes: 0
From: Hong Kong
SL500 (1995), 230E (1988)
Difficult to start when engine is hot
My SL500 seems to have difficulty starting when the engine is hot. Very easy to start when cold though. Anyone had similar issues?
Senior Member
Joined: Sep 2009
Posts: 410
Likes: 1
From: Northern VA
CL55, SL500, E350
If you need help, you should describe more details the symptoms. Also, the mileage and model year of your SL500 should also be helpful.
Without all those, my guess is either CPS or fuel pump/sensor.
Without all those, my guess is either CPS or fuel pump/sensor.
Member
Joined: Jul 2010
Posts: 137
Likes: 0
From: Southern Illinois
82 380SL 96 SL500
If '90-'92 a failing fuel accumulator would be a good guess.
If it's a newer model I'd guess a sensor, but damned if I know which one.
You did notice I said "guess"?
BTW, please add model year to your profile. It makes a BIG difference as there are major differences in models.
Last edited by abiby; Apr 3, 2011 at 02:41 PM.
Thread Starter
Newbie
Joined: Mar 2011
Posts: 5
Likes: 0
From: Hong Kong
SL500 (1995), 230E (1988)
The car is with the mechanic as we speak. He reckons the difficulty in starting when the engine is hot is due to two faulty fuel valves so the 2 fuel valves needs replacement as there was evidence of fuel leak in that area. I should be getting the car back in a day or two so I will update again.
Newbie
Joined: May 2009
Posts: 5
Likes: 0
From: Honolulu, HI
1992 500SL
The car is with the mechanic as we speak. He reckons the difficulty in starting when the engine is hot is due to two faulty fuel valves so the 2 fuel valves needs replacement as there was evidence of fuel leak in that area. I should be getting the car back in a day or two so I will update again.
any update to your fix ?
thx
jg.
