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cliffdunedin

Weird auto trans issue

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Hey guys,

I have noticed a couple of times this week that my e36 auto, almost seems to slip for a second from a standing start so I tried on my driveway that has a slight angle and it does seem to slip just a little, strange thing is if i put it in 1st gear this problem does not occur anymore and it grabs fine.

Does anyone have any idea what may be causing this? I've had a search and have found a few could be's but would be good if anyone has a good idea. Cheers

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slipping in BMW transmissions of this era is usually just the fluid being low, does yours have an engine bay dipstick?

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old dirty trans fluid , thick when cold so doesn't get around the gearbox properly.

blocked trans oil filter??

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Thanks guys, ill look at changing trans oil and filter next weekend. Dextron 3 right? Do you think there would there be any benefit going synthetic with the old auto? Cheers

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Thanks guys, ill look at changing trans oil and filter next weekend. Dextron 3 right? Do you think there would there be any benefit going synthetic with the old auto? Cheers

I put synthetic in a replacement (trademe $300) Jatco box and it's brilliant - however as it was out I got to change all the fluid. Don't think the torque converter drains fully with the box in the car.

The fill procedure for the E36 is tricky - you need a u shaped tube and a pump, as the filler is a vertical tube in the bottom of the sump. Level needs to be set with the car in the air, the box at operating temp and a set speed - with the rear wheels turning...

If it's a Jatco box it's nearly identical to Nissan, so get the filter and gasket from your friendly auto specialist, not the dealer.

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^that filling procedure is for like all of them without a dipstick...

If it doesn't have a dipstick I'd suggest going to an automatic specialist.... That's what I did. lol.

milland can get the pan gasket and filter. (my car has a ZF)

Edited by antil33t

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^that filling procedure is for like all of them without a dipstick...

If it doesn't have a dipstick I'd suggest going to an automatic specialist.... That's what I did. lol.

milland can get the pan gasket and filter. (my car has a ZF)

+1. Ive done it once, ended up with more on the ground that in the car. never again lol

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I put synthetic in a replacement (trademe $300) Jatco box and it's brilliant - however as it was out I got to change all the fluid. Don't think the torque converter drains fully with the box in the car.

The fill procedure for the E36 is tricky - you need a u shaped tube and a pump, as the filler is a vertical tube in the bottom of the sump. Level needs to be set with the car in the air, the box at operating temp and a set speed - with the rear wheels turning...

If it's a Jatco box it's nearly identical to Nissan, so get the filter and gasket from your friendly auto specialist, not the dealer.

Thanks for that, I did a little reading and it does seem a little tricky... when you say wheels turning, do you mean on jack stands, engine running and in gear

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^ Yep. it needs to be pushed through all the gears... and the temp has to be exactly 30c otherwise the fluid is too low lol.

This is why I gave up and left it to the pros!

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^that filling procedure is for like all of them without a dipstick...

If it doesn't have a dipstick I'd suggest going to an automatic specialist.... That's what I did. lol.

milland can get the pan gasket and filter. (my car has a ZF)

lol hit Milland up today about filter and gasket, who did you take yours too and what did they charge? ;)

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Integrity Automatics... $300 odd.. that wasn't including a filter, and that was a replacement pan gasket... (it leaked due to an installation f**k up)

Fluid is $32/L..... for Fully Synthetic from them.

Can't complain, the car works really well lol.

Edited by antil33t

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Sweet, i'm gonna hit them up. My usual guy in Waverly is booked hard for the next 2 weeks and the 2 others i checked were charging quite a little more than that!

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na just swap it out for a 5spd manual kit :)

and maybe a m52b28 while you are at it :)

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Lol I know! I'm up in odds at the mo to find a e36 325 or 328 or go with an e39...

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I would imagine it's the same for the E36, on my E39 you can't drain all of the fluid from the torque converter so they've drained and refilled and I will go back and have it drained and refilled again after about 1500km's to make sure we've got all the oil fluid out.

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or they use a flushing machine lol.

I'd only get it flushed if it was REAL dirty. I didn't bother as the oil wasn't burned, just looking oldish. but it should have fairly clean oil now since it's been drained twice, that's 4L each time.

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