E36 328i gearbox swap?
E36 328i gearbox swap?
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Discussion

stepmeek

Original Poster:

181 posts

144 months

Thursday 10th August 2017
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Been having a look at E36's recently and I am seriously considering one. However the decent 328's seem to command a massive premium over the other models, that is unless it is an automatic version. I have been seeing auto boxed cars that are around £1000 less.

So question is, how difficult is it to change the boxes and how expensive would it be? I am capable of changing brake pads or an exhaust say but this is well beyond my mechanical know how on cars so it would have be done by a garage.

Interested to hear if anyone has any experience.

helix402

7,913 posts

213 months

Friday 11th August 2017
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See my E46 thread for a manual to auto conversion. It's doable, but is a lot of work. I did most of mine in a day, but that was with a mate and a ramp.

iSore

4,011 posts

175 months

Friday 11th August 2017
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Not too bad......

You'll need a gearbox, propshaft, flywheel and a new clutch kit, pedal box (you only swap the actual pedals), clutch master and slave cylinders and the clutch pipework. The autos often had a slightly lower final drive, 3.07 versus 2.93 but that works in your favour. Disconnect the gearbox ECU and remove the transmission warning light bulb from the cluster. Some minor wiring around the gear selector area to disable the inhibitor switch and remove the auto trans cooler pipes - the outlets in the rad can be left open or filled with Araldite. 328i Autos will almost all have the steering to selector locking cable - just cut with with big side cutters at the steering lock end. If you just remove it by unscrewing it,. the ignition lock won't work.

2 days work on a ramp with the loose ends tidied up will cover it. Approximately £6-700 in bits, around the same again in labour depending on who does it. I've done one in the past, plus two E28's and an E24 6 Series.

helix402

7,913 posts

213 months

Friday 11th August 2017
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Good advice, not sure about the E36 but on my E46 I reprogrammed the EWS for a manual (to bypass the inhibitor switch) and also reprogrammed the IKE to manual to sort the warning light.

I know the E46 DDE has different software for the manual too, not sure about the 36.

iSore

4,011 posts

175 months

Friday 11th August 2017
quotequote all
helix402 said:
Good advice, not sure about the E36 but on my E46 I reprogrammed the EWS for a manual (to bypass the inhibitor switch) and also reprogrammed the IKE to manual to sort the warning light.

I know the E46 DDE has different software for the manual too, not sure about the 36.
You've got me there; E36's are old school pre canbus and it simple knife and fork engineering in comparison.

helix402

7,913 posts

213 months

Friday 11th August 2017
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I checked and you can use PA Soft to change ews to manual, not sure about cluster. You probably need a clutch switch too for cruise control to work.

Tommo Two

217 posts

176 months

Tuesday 15th August 2017
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I've PM'd you not sure if the PM systems is working though!