8-Speed Automatic Transmission Assembly for 2011-2014 BMW X5, X6
Product Notes Read before buying
This is an 8-speed automatic transmission for All-Wheel Drive (AWD) models with the 4.4L twin-turbo V8 engine. For 2013 BMW X5 and 2013-2014 BMW X6 models, this part fits vehicles WITHOUT the optional Performance Package.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| M | SUV | 2011 - 2013 | V8 4.4L Turbo | AWD | Automatic |
| xDrive30i | SUV | 2011 - 2013 | V8 4.4L Turbo | AWD | Automatic |
| xDrive35i | SUV | 2011 - 2013 | V8 4.4L Turbo | AWD | Automatic |
| xDrive50i | SUV | 2011 - 2013 | V8 4.4L Turbo | AWD | Automatic |
| 2012 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| ActiveHybrid | SUV | 2011 | V8 4.4L FULL HYBRID EV-GAS (FHEV) Turbo | AWD | Automatic |
| M | SUV | 2011 - 2014 | V8 4.4L Turbo | AWD | Automatic |
| xDrive50i | SUV | 2011 - 2014 | V8 4.4L Turbo | AWD | Automatic |
| xDrive50i M Performance | SUV | 2013 | V8 4.4L Turbo | AWD | Automatic |
| 2012 |
Know This Transmission Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:
A quick look at your own vehicle makes sure the right transmission shows up:
- Verify the 17-digit VIN plate (8th digit should be '8' for standard 4.4L twin-turbo V8 N63 engine).
- Verify the transmission model on the metal ID tag is GA8HP70Z or GA8HP70ZX5C.
- Confirm the vehicle is an xDrive (All-Wheel Drive) model.
- Verify the vehicle does not have the high-output M Performance Package.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Heavy-duty transmission jack
- Torx and E-Torx socket sets
- Fluid transfer pump
- OBD2 diagnostic scanner / BMW ISTA or BimmerLink
- Specialized BMW programming software (e.g., Autohex, WinKFP, or Yanhua ACDP)
Budget for these consumables at install:
- ZF Lifeguard 8 fluid (or BMW ATF 3+ equivalent / Mopar 68218925AA)
- New Oil Pan & Integrated Filter Kit (ZF part number 24118612901 or equivalent)
- Single-Use Aluminum Pan Bolts
- Mechatronic Connector Sleeve (ZF part number 0501.220.929)
- Torque Converter Front Seal
- Cooler Line Flush
- Valve Body to Case Seals (bridge seal and four small tube seals)
What your vehicle’s computers will need after the swap:
What’s involved: Security/Immobilizer Re-marriage (ISN Reset) and VIN-specific coding
The transmission's internal computer (TCM/Mechatronics) is electronically locked to the donor vehicle's security code (ISN). If installed without programming, it will remain locked in Park or enter limp mode. Installers must either swap the original functional mechatronics unit or virginize and program the replacement unit using dealer-level tools like ISTA.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Must rotate and push until it fully engages all three internal stages. Failure to seat fully will crush the internal oil pump and destroy the transmission instantly.
- Temperature-Sensitive Fill Procedure: Final fluid level check must be performed with the vehicle level, engine running, and fluid temperature strictly between 30°C and 40°C (maximum 50°C).
- Dowel Pin Alignment: Ensure metal alignment dowel pins are in place on the back of the engine block and not doubled up.
- Do Not Flush: Perform standard drain-and-fill only; never use a pressurized flushing machine on the transmission itself.
- Crossmember Access: On the E70 X5, the transmission crossmember blocks access to the rear oil pan bolts and must be supported and lowered.
- Shifter Selector Alignment: Ensure the manual valve is correctly engaged with the electronic shifter's selector mechanism inside the transmission when reinstalling the valve body.
Easy to get right once you know them:
- Expecting a Plug-and-Play install without resetting the security immobilizer (ISN).
- Reusing the old plastic pan and old seals.
- Using the wrong fluid (generic multi-vehicle ATF instead of ZF Lifeguard 8).
- Skipping the cooler line flush, which recirculates debris from the failed unit.
- Breaking the front pump by failing to fully seat the torque converter before bolting to the engine.
Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Have a dealer replace the front driveshaft to prevent it from breaking and destroying the replacement transmission case.
🔎 Recommended at install: Check fluid levels at precise temperatures and reset adaptation values using factory diagnostics.
🔎 Recommended at install: Replace the plastic electrical connector sleeve during installation.
🔎 Recommended at install: Replace the plastic oil pan and integrated filter assembly.
🔎 Recommended at install: Replace fluid or replace torque converter lock-up clutch linings.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-51830-2075269). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2011-2014 BMW X5 & X6 4.4L V8 Transmission: Problems, Identification, and Used Replacement
Identify the exact ZF 8HP70 variant for your xDrive50i, understand common failure points, and learn when to replace it with a quality used OEM assembly.
Read Full Guide →Related Trouble Codes (OBD-II)
1 matching guideIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
BMW: 24007607739, 24007644023, 24007644214
ZF: GA8HP70Z, GA8HP70ZX5C
Fits Years: 2011 2012 2013 2014
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