Stalling at a stop
I've got a 1999 E55 that I just bought last week. When I test drove it it had no problems at all, slow fast, quick acceleration, slow acceleration, no leaks or rust so I bought it. Couple days ago it started hesitating with WOT, so I poked around here and suggestion was Techron, so I bought a couple cans, changed the oil with Mobile one 0-40 with basic filter, which I will be replacing with a Mann filter in 3k miles, cleaned the MAF.
Now at WOT there is no hesitation, seems quick and such but when I come to a stop with the tranny in drive, or any forward gear it stalls.
If I pop it into neutral as I stop it doesn't stall and if I stop reeaaallllyyyy ssssllloooowwwwlllllyyyy it doesn't stall either. The car has full maintenance record with it and never seems to have had transmission fluid replaced, plug wires, or plugs it seems.
Now for the question; should I wait out the Techron, or just change the fluid, wires, and plugs. Also I've read that the crank sensor could be bad and cause stalling when stopping. And if so which plugs should I use I can get Bosh Fusions for $4 back per plug, and I know it would take 16 of em.
Also what temp do your guyses engine run at. I'm down in San Antonio and its already >100 F with heat index and car runs at like 100-115 C. Is this normal? My Land Rover used to run like this but I changed the fan clutch and the running temp dropped down below 100 C under any condition with both A/C's running full blast. So should I replace fan clutch, there seems to be no receipt from previous owner for it back up it being replaced.
Happy speeding!!
In the 2002 E55, NGK Platinum plugs were OEM.
Edit: Just saw how hot your engine is running... 115 is way too high. How many miles on the car?
Last edited by Nocturnal-G; May 19, 2013 at 12:38 AM.
Did you have a PDI done prior to buying the car? These cars can get rather expensive to fix if something goes wrong.
The only thing that seems due after going through guys receipts is fuel filter.
The car takes around 10 sec to get to 60 but really puts the power down after 80mph now. Maybe its the fuel filter being dirty?
The temp the car runs at is 90-100 C and never get over 100 C, is this to high? He had coolant system drained and serviced like 20000 miles ago at MB dealer.
No I didn't get a inspection done my dad, an old nascar mechanic, and I are usually good at finding any problems with a car when we look at it.
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The only thing that seems due after going through guys receipts is fuel filter.
The car takes around 10 sec to get to 60 but really puts the power down after 80mph now. Maybe its the fuel filter being dirty?
The temp the car runs at is 90-100 C and never get over 100 C, is this to high? He had coolant system drained and serviced like 20000 miles ago at MB dealer.
No I didn't get a inspection done my dad, an old nascar mechanic, and I are usually good at finding any problems with a car when we look at it.
Its like the timing isn't advancing, or the timing is off and not firing when the piston is at the top of the cylinder.
I don't think its fuel starvation, I could be wrong, I just got this car and haven't had time to learn the way it 'feels' just yet. Though it was great up until Friday morning.
I'm used to this with my Rover, on day your on, and climbing a 60 degree face, the next your struggling to get to work. The things I'm willing to deal with for performance vehicles, must be crazy.




I replaced EGR. Its diaphragm didn't hold vacuum and seemed stuck when manually operated. Its mountains better now as the slight back firing seems to have gone away. Though it still hesitates when floored at the point of kick down. Not much mind you. I took a coworker for a test drive and he could not feel the hesitation I was describing but its still 8-10 sec to 60 seems slow to me for this car.
After talking to a coworker who has older BMWs, he just got back from vacation, said he'd bring his OBDII reader in we can get reading while car is running.
I'm waiting for my air filter and fuel filter to come in before I spend to much more money.




When I got home I ran the OBD and found that cylinder 1 and 7 were misfiring. So I cleared them and changed the air filters and fuel filters hoping that might clear things out.
I took a trip for pizza to try it out but it still doesn't seem to accelerate right. It still easily broke the century mark and then some but the 0-60 is still 10 sec or so and seems to be held back when I floor it, almost like a blocked cat would act like.
It had no codes when I got home but it was a short trip, I'll run the scanner again when I get to work to see if the long trip drags any codes up.
Last edited by ob1kenobi; May 24, 2013 at 12:24 PM. Reason: typo


