Jamie330d Posted March 22, 2013 Report Share Posted March 22, 2013 I asked a while back about what I needed to convert my 330d estate from a 5 speed to a 6 speed, this is how done so advice for anyone thinking about it, it's NOT worth it lol! To make it work you need: 6 speed gear selector 6 speed clutch 6 speed gearbox 6 speed propshaft Wire Gearbox mount Essentially it's a straight forward job, just swap the box ect you will need to change the clutch as its got twice the amount of splines on the first motion shaft, the dual mass is the same, you will also need to cut the reverse light sensor wire and extend it as the 6 speed one is further back, the gearbox mount for under the floor is also different from the 5 speed one so this needs to be changed aswel, also cruise control doesn't work in 6th. Hope this helps anybody going to attempt conversion Blair and momo 2 Quote Link to comment Share on other sites More sharing options...
Rob- Posted March 22, 2013 Report Share Posted March 22, 2013 Could the cruise control not be made to work in sixth? Quote Link to comment Share on other sites More sharing options...
e46rob Posted March 22, 2013 Report Share Posted March 22, 2013 Lot of work for an extra gear when a 5 speed bm is already one of the best mile munchers out there. If you want it that badly, probably best to sell your car and buy a 6spd model Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 22, 2013 Report Share Posted March 22, 2013 Interesting you say about the dual mass being the same as they are 2 completely different part numbers - the 6speed one being around £100 more expensive too. Quote Link to comment Share on other sites More sharing options...
Jamie330d Posted March 22, 2013 Author Report Share Posted March 22, 2013 (edited) I think it could be made to work in 6th with the cruise control but iv not yet tried i only done the conversion today, I may try putting it on the computer at some point to see if its do able, I didn't change my dual mass just left my 5 speed one and it drives fine in all gears Edited March 22, 2013 by Jamie330d Quote Link to comment Share on other sites More sharing options...
Ultra D Posted March 22, 2013 Report Share Posted March 22, 2013 What was you hoping to gain from this conversion ? Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 22, 2013 Report Share Posted March 22, 2013 What was you hoping to gain from this conversion ? ...an extra gear perhaps? marc l, Blair, James B and 4 others 7 Quote Link to comment Share on other sites More sharing options...
Rich_D Posted March 22, 2013 Report Share Posted March 22, 2013 ...an extra gear perhaps? and better ratios Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 22, 2013 Report Share Posted March 22, 2013 ...and to show off that his 5 speed knob can actually go that extra gear!! Mengwalton, Rich_D and Lee131 3 Quote Link to comment Share on other sites More sharing options...
autosri Posted March 23, 2013 Report Share Posted March 23, 2013 How does the car know what gear it's in Quote Link to comment Share on other sites More sharing options...
marc l Posted March 23, 2013 Report Share Posted March 23, 2013 Good work Jamie I would like to do this to my 318. Are the rpm on the motorway much lower now? I'd imagine getting c/c working is possible Quote Link to comment Share on other sites More sharing options...
Jamie330d Posted March 23, 2013 Author Report Share Posted March 23, 2013 The car will drive in 6th at 50 just above idle. Quote Link to comment Share on other sites More sharing options...
Ultra D Posted March 23, 2013 Report Share Posted March 23, 2013 The car will drive in 6th at 50 just above idle. I can see that it makes sense if your doing a lot of motorway driving, apart from that it seems like a lot of graft for little gain. Quote Link to comment Share on other sites More sharing options...
Rich_D Posted March 23, 2013 Report Share Posted March 23, 2013 How does the car know what gear it's in ECU knows, speed vs revs, when I had my AVC-R in my 200SX you calibrated it so it could tell which gear you were in, so you could run different boost in different gears Quote Link to comment Share on other sites More sharing options...
RCUK Posted March 23, 2013 Report Share Posted March 23, 2013 How much did it cost to do? I know the autobox goes pop after a while... so is it cheaper to replace it with a manual when it does?? Quote Link to comment Share on other sites More sharing options...
Jamie330d Posted March 23, 2013 Author Report Share Posted March 23, 2013 (edited) If so I have everything to convert except the roller bearing for inside the crankshaft, pedal box and slave parts if anyone's interested, I got all my parts cheap through people I know and keeping my ear to the ground, the parts are hard to come by for 6 speed though, total cost roughly for a garage 6-700 I done all the labour ect my self and got cheap parts so mine came in at about 400 Edited March 23, 2013 by Jamie330d Blair 1 Quote Link to comment Share on other sites More sharing options...
RCUK Posted March 24, 2013 Report Share Posted March 24, 2013 Wow.. pretty good. Id be tempted to convert mine to manual - think the car loses something as an auto .... Quote Link to comment Share on other sites More sharing options...
Jamie330d Posted March 28, 2013 Author Report Share Posted March 28, 2013 (edited) :@ dual mass on it's way out which is annoying! I knew it needed replaced when the car was stripped for conversion but due to time had to put it back together anyway ! Oh well new DMF only £310 so not to bad but need to fit it through the night Saturday night into Sunday morning Edited March 28, 2013 by Jamie330d Quote Link to comment Share on other sites More sharing options...
Rich_D Posted March 28, 2013 Report Share Posted March 28, 2013 Oh well new DMF only £310 so not to bad where from and what make? Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 28, 2013 Report Share Posted March 28, 2013 Its a piece of cake to take box off - prob do flywheel and clutch in a couple of hours tops. Rich - bear in mind theres 2 different DMFs dependant upon engine etc. 184bhp version is considerably cheaper than our one. Quote Link to comment Share on other sites More sharing options...
mjn Posted March 28, 2013 Report Share Posted March 28, 2013 ECP do a LUK DMF for the 204 engine for the price of.........£525!!! But they do have 35% at the moment. Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 28, 2013 Report Share Posted March 28, 2013 (edited) ECP do a LUK DMF for the 204 engine for the price of.........£525!!! But they do have 35% at the moment. I can get it for around £350ish normally anyway I think - cheap though that Edited March 28, 2013 by L333JSA Quote Link to comment Share on other sites More sharing options...
Rich_D Posted March 29, 2013 Report Share Posted March 29, 2013 Rich - bear in mind theres 2 different DMFs dependant upon engine etc. 184bhp version is considerably cheaper than our one. Damn, I forgot that... Quote Link to comment Share on other sites More sharing options...
Jamie330d Posted March 29, 2013 Author Report Share Posted March 29, 2013 (edited) According to luk the fly is the same for 5 and 6 speed, its from a trade only parts supplier in edinburgh, I have checked my reg and a 6 speeds reg and they say its definitely the same fly wheel 256.88 + vat I have a 204bhp engine here as a spare with a fly on it(fcuked) il compare and take pics of them all together Edited March 29, 2013 by Jamie330d Quote Link to comment Share on other sites More sharing options...
L333JSA Posted March 29, 2013 Report Share Posted March 29, 2013 According to RealOEM the part numbers are... 5 Speed DMF - 21217512329 6 Speed DMF - 21207533924 AFAIK the LUK lists them as being different too. Quote Link to comment Share on other sites More sharing options...
