Bmw Automatikgetriebe Steptronic 8 Gänge

Contents

This guide startseite everything you need to knowto swap her BMW with N52 engine indigenous GM zu a ZF6HP transmission! It will not startseite the basic tasks how zu remove your infection from your automobile (which any mechanic kann sein do) but ns specifics freundin need kommen sie know zum this particular swap.

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History

Thanks to various circumstances, BMW had actually to fit a specific amount of vehicles bei the period from approximately 2006 - 2010 with a 6-Speed GM automatic Transmission, instead von the 6-Speed unit indigenous ZF. Typically all BMW v 6-Speed auto were fitted with either the ZF 6HP19/21, ZF 6HP26/28 or ZF 6HP32/34. However, BMW v N52 (and N43) engines were sometimes equipped with the GM unit. Most commonly ns GM unit zu sein found in the US-Versions von 325i and 330i (E9x) and the 125i/130i. (E8x)

Do I schutz a GM or ZF in my N52 BMW?

Online part-catalogs aren"t able kommen sie determine even if it is a specific N52 vehicle hinweisen a particular build date got fitted with a GM or ZF unit. (Hint: her BMW Dealer can, based upon your VIN. XHP will also tell you "not supported" wie man a GM infectious diseases world fashion is in your car) This creates consistent confusion amongst potential xHP customers, whether they kann sein use xHP or not. (xHP only works for ZF) while it ist out des scope zum us, kommen sie redo our development for the couple of cars with GM unit, it"s nice easy to swap your GM unit for a ZF und take benefit of bei immense performance und fun gain. We"re notfall shy zu say, freundin won"t acknowledge your automobile again. Some could disagree, but even if notfall "xHP-ed" the ZF zu sein superior to the GM bei many aspects and despite there room some traps, it"s easy to swap wie being ready with ns right parts und knowledge.

First of all, the correct ZF ist a straight swap in any BMW with GM 6L45. It möchte bolt on the engine side and it möchte bolt zu your driveline. As both transmissions were used in production and OEM"s constantly tend zu do as wenig variants of certain components as possible, this isn"t surprising hinweisen all. However, part auxiliary dinge need zu be changed und you need zu make sure kommen sie source die right ZF transmission, which ist where her journey need to start. Us did this swap top top a 2009 130i (LCI), deswegen the transmission zu source was a 6HP21, sometimes referred to as 6HPTU. TU stands weil das "Technische Uberarbeitung" and is kind of ns LCI version von the 6HP. (Note: the parts cataloge always spits out "6HP19Z", regardless if the car bei question has actually a 6HP19 or 6HP21. BMW just discriminiates them by PartNo.)

However, you need kommen sie make certain your are obtaining a ZF that matches your car und has ns correct TCU fitted. Ns safest means of kurse is to source a ZF trans the comes from ns very very same car and build date, but this isn"t mandatory und sometimes notfall even possible when only GM was used an that period. Ns 6HP came bei 3 sizes and all cars that come with the GM 6L45 need a 6HP19 or 6HP21 weil das swapping. You can cancel the end all various other versions. Together a rule of thumb search for a 6HP19 if her car zu sein 2006 und before, every others space fine v a 6HP21. NOTE: back TCU"s from non-LCI cars can work in LCI vehicles, you may run right into problems. (this depends on die program variant used an the DME and TCU and even may stop kommen sie work ~ updating one of them, deswegen don"t execute it).



How do ich find the correct ZF for swapping?

It"s quite easy, to tell if you"re looking at a 6HP19 or 21, reason it"s stamped in the real estate on die driver-side. But there"s more kommen sie consider. There are plenty of different routine numbers the end there and not all of them möchte work in your N52 car. Ns program number kann sein be uncovered on a white sticker, at the driver-side von the transmission und is preceeded von "HW".

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For 2005/2006 N52 cars, those space safe kommen sie use: 7563275, 7564645

Note: Do not use transmissions native X3 E83 or Z4 E85/E86 an your E87/E88 or E9x car. Those interact on K-Line and you won"t be able kommen sie reach lock through die OBD port. They would certainly need kommen sie be bench-flashed prior to they are able zu communicate in their neu environment.

For dare 2007 and above, those space safe kommen sie use: 7573661, 7591971

Make sure die transmission come with ns matching torque converter! ns one from the GM infection will not match the ZF trans!

Both lists are notfall complete, yet other HW# may have issues communicating and would need zu be flashed before even P/R/N/D shifting zu sein possible.



Wiring

!! This ist important !!

Although the connector on ns vehicle impend to ns trans ist mechanically ns same, die pin-out is totally different! do NOT just plug the neu trans in. You will need to open the connector, extract the pins (best to get a tool zum that, otherwise it"s major PITA. For instance Beta set 1497/C23) und re-pin as gezeigt below. It"s pretty directly forward, if you markierung all wires prior removing from the connector. Unused wires can be isolated and tucked away in the loom. (ZF has actually only one long-term positive, vice versa, GM had actually 2) be sure notfall to mix die wires, as this kann sein lead to permanent damages on ns TCU. The bild shows ns pin-out on the transmission! (mirrored to connector!) Double and Triple-Check zum the appropriate slot on ns connector every time freundin place a wire! the connector normally has die Pin# stamped in, deshalb you kann sein compare the to die pin-out offered below.

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Getting it zu work

Once ns transmission is in place and wired, you kann check weil das communication v xHP. It need to instantly recognize your auto now. If not, sie likely have in issue with ns wiring!At this suggest you also may open the oil-filler screw slightly and check if there"s even any kind of fluid bei there. Often used transmissions are emptied at die scrapyard, dafür you need kommen sie fill castle up. Even if not, it"s likely a great idea kommen sie do a service when you"re currently on it. (new oil, sealings and filter) Beware wie checking oil, it wollen instantly spill, if you offen too wide!Start ns car und check if PRND at die gear lever ist working. If not, you likely have an issue in your wiring.If all ist fine, examine oil-level with engine to run according to ZF spec prior to driving.Do a brief test-drive, seen if shifts are reasonably fine. Check if trans reacts kommen sie S-Mode at lever und +/- Steptronic. Examine your steering wheel paddles bei S.If you got this far, you tun können use xHP nur like everyone else. Schutz fun! If you ausblüten run into issues, or the app still tells sie that freundin car ist not supported, please call us.

Disclaimer

This guide was written to ns best des our knowledge but it is still your responsibility to double-check things (e.g. Get electrical wiring plans indigenous your an extremely car!) and use common sense wie carrying the end this swap. We do notfall take any type of responsibility zum damage resulted in on your vehicle or ns environment due zu errors in the guide, montage errors or non-matching parts.