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Car Forum / BMW Cars / February 20061990 525i with 240k miles - has my auto tranny bit the dust?
It started out several months ago with slipping between first & second gear. Today, it was slipping between all gears then just stopped going forward altogether. The guy at the shop said he didn't think it was worth dropping the pan but was investigating other options. Should I scrap the car? Get a used tranny and do it myself? Rebuild this one? Any thoughts are appreciated > It started out several months ago with slipping between first & second gear. > Today, it was slipping between all gears then just stopped going forward [quoted text clipped - 5 lines] > Should I scrap the car? Get a used tranny and do it myself? Rebuild this > one? If it drives OK in reverse then you've fried the A clutch pack, that's quite likely. Time for a new tranny. You can maybe get a used one on ebay.  SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price It's probably the same ZF tranny that's in my 89 325i. Rebuilt it sitting in my garage for about $300 including a new torque converter. If you've ever been into an automatic before, this one is pretty easy. You could get another tranny but I sure as hell wouldn't scrap the car unless you just don't like it. Even then, sell it cheap! >> It started out several months ago with slipping between first & second gear. >> Today, it was slipping between all gears then just stopped going forward [quoted text clipped - 9 lines] >quite likely. Time for a new tranny. You can maybe get a used one on >ebay. >> It started out several months ago with slipping between first & second >> gear. [quoted text clipped - 12 lines] > quite likely. Time for a new tranny. You can maybe get a used one on > ebay. yes it does drive fine in reverse. I saw one for $300 on ebay - you guys ever heard if someone buring a tranny off ebay was satisfied? > yes it does drive fine in reverse. I saw one for $300 on ebay - you > guys ever heard if someone buring a tranny off ebay was satisfied? The risk of buying a secondhand auto is if dirt has got in - that can kill an otherwise previously decent unit. You need to use near clinical standards of 'hygiene' when fixing them. And if your unit has failed remember to change the torque convertor too as this can't be cleaned. And flush through the oil cooler before re-connection. Signature*Rehab is for quitters. Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. > If it drives OK in reverse then you've fried the A clutch pack, that's > quite likely. Time for a new tranny. You can maybe get a used one on > ebay. Are trannys hard to put in yourself if I did one a used one? I don't have a garage but do some a few tools or could borrow them. >> If it drives OK in reverse then you've fried the A clutch pack, that's >> quite likely. Time for a new tranny. You can maybe get a used one on >> ebay. > >Are trannys hard to put in yourself if I did one a used one? I don't have a >garage but do some a few tools or could borrow them. If you've never done much work on your vehicles, getting a tranny out and back into the car will be the most daunting task you've ever attempted. Getting the ZF out will require HOURS of laying on your back under the car while knocking dirt and debris into your face while using language your mother doesn't approve of. Also, it's possible by yourself but I highly suggest enlisting the help of a friend that has done stuff like this before. At least one of you is going to have to have prior knowledge of how this is done. I have rebuilt the ZF 4 speed auto in my 89 325i and replaced the Getrag 260 in my son's 87. All in all I must say the Getrag was easier as it was lighter but niether of them is a job I'd do just for fun. Find a friend that has replaced a tranny before that is willing to help you and either plan to rebuild yours or get one from a reliable salvage yard. The one I use here provides a one year guarantee on trannys. Not bad for a used part. Best of luck and keep us up to date on the progress... The car is worth the effort to repair... > If you've never done much work on your vehicles, getting a tranny > out and back into the car will be the most daunting task you've ever [quoted text clipped - 7 lines] > All in all I must say the Getrag was easier as it was lighter but > niether of them is a job I'd do just for fun. I did a (manual) transmission change on an e36 325i once - the most difficult part was getting to the starter motor bolts and the tranny to engine bolts in that same area. Possibly the 525 has more room. That part really was a b!tch. had to start with taking covers etc off and even the inlet manifold (though it's an easy job). You'll need room to manouver the 'box out and back in again from under the car. I did mine in a large garage with a 6' inspection pit. I wouldn't want to do it out on the street. My used tranny cost ~US$200 and it took me a weekend including goign to get the other transmission. I'd be a bit more warey of getting a used automatic though unless I was sure it came from a low mileage car. It's looking like I will buy a used transmission and have a shop replace it. Someone mentioned I might need a torgue converter. How do I know if I need one or not? (hopefully not!) Thanks again! > It's looking like I will buy a used transmission and have a shop replace > it. Someone mentioned I might need a torgue converter. How do I know > if I need one or not? (hopefully not!) If the transmission has been slipping gunge will have been circulated to both the TC and the cooler. The cooler can and *must* be cleaned - but the TC cannot (without specialist equipment) so is replaced. So make sure the used transmission has its TC with it. Signature*A chicken crossing the road is poultry in motion.* Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. > If it drives OK in reverse then you've fried the A clutch pack, that's > quite likely. Time for a new tranny. You can maybe get a used one on > ebay. It's not impossible to do a DIY re-con of autos if you're used to working on cars. Although I've not done a ZF. I've done both B-W and GM three speeders with success - at about 1/4 of the cost of a decent re-con done professionally. Signature*Nothing is foolproof to a sufficiently talented fool. Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. |
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