|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#71
|
||||
|
||||
__________________
2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
Sponsored Links | |
|
#72
|
||||
|
||||
Quote:
__________________
2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#73
|
|||
|
|||
The engine would have to be running to have a chance of overfilling (because the torque converter and valve block drain down) and the transmission bulk oil temperature increases at around 5 deg.C. per minute with the engine running.
So say ambient temperature was 10 deg. C. (would anybody try checking their fluid level at a temperature below this?) and it took a minimum of one minute to carry out the check. So that’s a temperature error of 20 deg.C. The volumetric coefficient of expansion will be around 0.0007/deg.C for ATF so that represents 0.13 litres. The throat area of the sump at the filler plug (including deducting the valve block) is around 375cm2 so that represents less than 4mm in fluid level. My point is, you’d have to try really hard to overfill a 5HP24 Phil |
#74
|
||||
|
||||
Quote:
Only my opinion, but I would say to keep it out of the valve body. Not because it is changing the functional properties of the fluid in a meaningful way.
__________________
2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue |
#75
|
||||
|
||||
Quote:
http://www.bmwtech.ru/pdf/e46/ST034/...20Internet.pdf Page 4 states "Transmission fluid is designated as "sealed for life". I define that as a system that's not user friendly in regard to checking fluid level/adding fluid. BMW uses the "sealed for life" definition to explain to owners that fluid level needs to be checked in a service shop, on a lift/over oil change pit, with tools and temp sensor (and the chance for a tech to get in/under the vehicle to inspect for any needed repairs on the ENTIRE vehicle, cha-ching!). As I stated in the other trans thread, the system would require a diaphragm seal to qualify as a "sealed system". Even 2 one way ball check valves (one for venting positive pressure, one for equalizing negative pressure, with a filter element), would significantly reduce any chance of envornmental contaminants/moisture from entering the system. I've seen significant dirt, dust, grime, road salts, grass/leaf/bug materals under the plastic engine covers on BMWs (where the tube vents). Not sure of % of fluid PH change over years of driving/mileage, I'm sure it's measureable and considered "acceptable" by BMW (the same BMW that gets paid when MANY trans fail, and where I was told "lifetime" is in excess of 100k miles).
__________________
'03 X5 4.4 Sport, last of the M62s (8-03 build date) I believe in deadication to craftmanship in a world of mediocrity! Last edited by TiAgX5; 09-25-2014 at 11:29 AM. |
#76
|
||||
|
||||
Hi all... regarding these 4.8is posts from a few years back now... my 4.8is Dec 2004 V8 (facelift) 6 speed auto has now covered 110K miles. I would like to do the transmission fluid change. Lots on that here thankfully. What fluid is best or would you just go with BMW dealer advisory? also vehicle still changes gear smooth and fine (for the main part)...... just occasionally it revs high in 1st and pretty bloomin' harsh change into second (changes late & hard) ... but only occasionally....... any ideas on this? Thanks for any advice... with thanks malc.
|
#77
|
|||
|
|||
1. your situation may be a PERFECT example of why dealers (and many mechanics) will say, "Dont change the fluid, we've seen a fluid change lead to issues"
You are noticing shifting issues. It MAY be too late. ATF has been ignored for 100k+ miles.....But, when issues then pop up, in a desperate attempt, owners will hussle in for an ATF service. Shops change the fluid, issues continue, dealer comes back: "Fluid change led to complaints" You hae an E53, no? not sure what transmission you have- but I would go with the OEM fluid (not necessarily BMW branded, but whatever the origian trans mfg has specificed) I would also NEVER get work dont on a BMW out of warranty at a mains dealer |
#78
|
||||
|
||||
Quote:
2002 X5 3.0 340,700 miles still on original fluid 2014 428i 37,000 miles 2004 325i sold at 123,600 miles 2001 325i sold at 66,000 miles 1970 Firebird Under restoration |
#79
|
||||
|
||||
Hi again... looks like my transmission is a 6HP26 .... I have not changed the ATF before as BMW (UK) said that fluid was in there for life.
I then read that 'life' according to 'experts' is between 90 & 100K miles.... so mine hit 100K 6 months ago! I have had the car since 60K miles... in the whole time I have had it on very very cold mornings the first time it shifts from 1st to 2nd it is late and harsh.... it does not do it after that... Some peops on here have said that this seals fixes the 1st to 2nd cold start hard shift.... Will probably do the change myself... will be interested to see how hard it is to replace this seal once the bottom pan is off! Best M Last edited by X5monsterBMW; 04-19-2018 at 04:59 PM. |
#80
|
||||
|
||||
If you change the bridge seal, you might as well change the four jump seals as well. And the mechatronic connector seal too.
So you'll need the six seals, fluid and a filter (and maybe a pan gasket - depends on exact trans).
__________________
Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|