Cold weather causing a transmission bump?
Thread Starter
Members
Joined: Jul 2008
Posts: 16
Likes: 0
Yesterday, I experienced several times when upon releasing the brake from a stand still, the car surged, but it was more of a bump forward, almost like dropping the car into drive with the accelerator slightly pressed down.
Because the car had only been started a while, I'm guessing it may have had something to do with it idling a little fast, but it wasn't a smooth surge. Almost felt like the brakes were releasing late and then dropping car into gear.
Anyone else experience something similar?
Because the car had only been started a while, I'm guessing it may have had something to do with it idling a little fast, but it wasn't a smooth surge. Almost felt like the brakes were releasing late and then dropping car into gear.
Anyone else experience something similar?
Contributors
Joined: Sep 2007
Posts: 1,712
Likes: 0
From: Encino, CA
My Ride: 04 545i - Titanium Silver/Black, Sport pkg, Comfort Seats w/ Lumbar, Premium Sound, power rear sunshade, Adaptive Xenon Headlights, Steptronic, Park Distance Control, Fold down rear seats w/ski bag, Aux jack, 6-disk changer, puddle lamps...
Engine: Custom Remus cat-back exhaust w/chrome square tips, K&N Air Filter, Charcoal Filter Removed, Sprint Booster :-), 50/50 mix of 91+100 Octane, EuroRev ECU Remap (coming soon lol), Dinan High-Flow Throttle Body (coming soon...maybe lol)
Interior: Portable Sirius Stilletto 100 w/car kit, Garmin Nuvi 680 mounted below rear-view mirror, LCI-style I-drive knob, Dark Poplar Center Dashboard Trim.
Exterior: E60 forum clings, 5% rear tint, ACS roof spoiler (painted black for distinct look against limo tint), ACS trunk spoiler, ACS add-on front spoiler and rear apron (awaiting installation), "18 Black Staggered BeBeS Style OER (emergency replacement for cracked sport 124 rims), black kidney grill, white accessory lighting (including license and trunk lamps), Angel-eye upgrade, AIB xenon-matched fog lamps, AIB V3's on order, red rear reflectors
Originally Posted by bash535i' post='744313' date='Dec 12 2008, 09:08 PM
Yesterday, I experienced several times when upon releasing the brake from a stand still, the car surged, but it was more of a bump forward, almost like dropping the car into drive with the accelerator slightly pressed down.
Because the car had only been started a while, I'm guessing it may have had something to do with it idling a little fast, but it wasn't a smooth surge. Almost felt like the brakes were releasing late and then dropping car into gear.
Anyone else experience something similar?
Because the car had only been started a while, I'm guessing it may have had something to do with it idling a little fast, but it wasn't a smooth surge. Almost felt like the brakes were releasing late and then dropping car into gear.
Anyone else experience something similar?
Members
Joined: May 2006
Posts: 169
Likes: 0
From: San Antonio, TX
Seems to be a common issue, at least with 2004/2005 models. This doesn't seem to be random. I get this 100% of the time when taking off from the exact same spots, meaning that it must have something to do with the computer figuring out taking off from certain situations such as slightly uphill with slight acceleration, etc. Obviously it doesn't figure things out quite right.
Contributors
Joined: Jul 2005
Posts: 7,790
Likes: 0
From: Helsinki, Finland
My Ride: My ex-ride: EU '08 LCI 520dA. Space Grey, Sport Seats in Black Leather/Fabric Anthracite, Sport Steering Wheel, A/C with Extended Features, Hi-Fi Speakers, Cup Holders, Cruise with Braking function, Folding Rear Seats, Xenons, Park Distance Control.
Welcome to the Forum bash535i,
Where are you from and how cold is it there?
Both the engine and the trans needs some warming up
to work proper, by driving slowly, if it is really cold.
Where are you from and how cold is it there?
Both the engine and the trans needs some warming up
to work proper, by driving slowly, if it is really cold.
Thread Starter
Members
Joined: Jul 2008
Posts: 16
Likes: 0
2008 535i
5000 miles
auto
outside temp about 30 degrees
Have only noticed it during the first 20 minutes of operation. It's definitely more than just the RPMs being up a little. I is a solid, definite jolt when letting off the brake pedal and applying the throttle.
5000 miles
auto
outside temp about 30 degrees
Have only noticed it during the first 20 minutes of operation. It's definitely more than just the RPMs being up a little. I is a solid, definite jolt when letting off the brake pedal and applying the throttle.
Thread
Thread Starter
Forum
Replies
Last Post
TexaZ3
Complete Car Sales
17
May 6, 2015 09:54 AM