R56 Subtle Jerks When Idling
#1
Subtle Jerks When Idling
Hey Everyone,
I'm experiencing a strange little issue that seems to have been happening as of late and I wanted to see if I could use the collective wisdom of NAM before heading over to the dealer.
After I've been driving the car for a while (about 20-30 mins+), whenever I am stopped for a bit the car will experience some subtle rhythmic jerks every 2 or 3 seconds. It's not something I've ever noticed before and it's only when I'm stopped in drive. If I go to park, or even turn on sport more, I don't notice the jerks at all.
Another interesting note is that if I drive it a bit aggressively, the jerks are a little rougher. I'm hesitant to take it to the dealer because I know they won't be able to "replicate the issue" as it only happens after a long drive.
I have a 2011 MCS 26K, no mods yet.
Any one else experiencing this?
I'm experiencing a strange little issue that seems to have been happening as of late and I wanted to see if I could use the collective wisdom of NAM before heading over to the dealer.
After I've been driving the car for a while (about 20-30 mins+), whenever I am stopped for a bit the car will experience some subtle rhythmic jerks every 2 or 3 seconds. It's not something I've ever noticed before and it's only when I'm stopped in drive. If I go to park, or even turn on sport more, I don't notice the jerks at all.
Another interesting note is that if I drive it a bit aggressively, the jerks are a little rougher. I'm hesitant to take it to the dealer because I know they won't be able to "replicate the issue" as it only happens after a long drive.
I have a 2011 MCS 26K, no mods yet.
Any one else experiencing this?
#4
EDIT: Just tried again today and the jerks DID COME BACK after cycling through sport and normal. I'm stumped...
Last edited by fox718; 09-23-2012 at 01:22 PM.
#5
#6
#7
Hmmm... Didn't know BMW had made the Autos as hard to check as the manuals... It used to be a good indicator of transmission health.
(Another compromise due to size constraints, or a Bimmer thing?)
What drew me to the post was the hesitations - mine has been doing so since very new from about 35C to 60C coolant temp. As the engine slows to idle, it sputters a bit a few times then settles. That takes about 10 seconds... I hadn't tried playing with the Sport button, but will next time I'm out...
E
(Another compromise due to size constraints, or a Bimmer thing?)
What drew me to the post was the hesitations - mine has been doing so since very new from about 35C to 60C coolant temp. As the engine slows to idle, it sputters a bit a few times then settles. That takes about 10 seconds... I hadn't tried playing with the Sport button, but will next time I'm out...
E
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#8
So... Dunno if this will help Fox718 out...
Took my MCS in for its first free oil change - they also carried out the coolant temp sensor replacement recall.
While my problems were at colder engine temps, they followed similar patterns to Fox718s'. Stumbles and hiccups that stabilise after 10s or so...
They're gone now.
I still have a sluggish thermostat to deal with - for another post...
Do you now if the recall was carried out Fox718?
E
Took my MCS in for its first free oil change - they also carried out the coolant temp sensor replacement recall.
While my problems were at colder engine temps, they followed similar patterns to Fox718s'. Stumbles and hiccups that stabilise after 10s or so...
They're gone now.
I still have a sluggish thermostat to deal with - for another post...
Do you now if the recall was carried out Fox718?
E
#9
So... Dunno if this will help Fox718 out...
Took my MCS in for its first free oil change - they also carried out the coolant temp sensor replacement recall.
While my problems were at colder engine temps, they followed similar patterns to Fox718s'. Stumbles and hiccups that stabilise after 10s or so...
They're gone now.
I still have a sluggish thermostat to deal with - for another post...
Do you now if the recall was carried out Fox718?
E
Took my MCS in for its first free oil change - they also carried out the coolant temp sensor replacement recall.
While my problems were at colder engine temps, they followed similar patterns to Fox718s'. Stumbles and hiccups that stabilise after 10s or so...
They're gone now.
I still have a sluggish thermostat to deal with - for another post...
Do you now if the recall was carried out Fox718?
E
I'm up for an oil change in a couple thousand miles so I'll ask them at that point unless it gets worst.
Looks like it'll remain unresolved for now.
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