8-Speed Automatic Transmission Assembly for 2013-2014 BMW 328i, X3
Product Notes Read before buying
This transmission fits specific production ranges. For 2013 models, it fits from a production date of 09/12. For 2014 BMW X3 models, it only fits vehicles manufactured through 07/13. Please verify your vehicle's production date before ordering.
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 |
|---|---|---|---|---|
| 2013 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| xDrive28i | SUV | 2013 - 2014 | L4 2.0L Turbo | AWD | Automatic |
| xDrive28i M Sport | SUV | 2014 | L4 2.0L Turbo | AWD | Automatic |
| xDrive28i Top Line | SUV | 2014 | L4 2.0L Turbo | AWD | Automatic |
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:
- Confirm vehicle is All-Wheel Drive (xDrive) via badging or VIN check.
- Locate identification plate on the side of the current transmission to confirm model is ZF 8HP45 / GA8HP45Z.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Transmission jack
- Engine support bar
- E-Torx socket set
- Torque wrench
- Fluid pump/syringe
- BMW-compatible diagnostic scan tool
Budget for these consumables at install:
- 8-9 liters of ZF-Lifeguard 8 fluid or approved equivalent
- Transmission filter/pan kit (integrated unit)
- New aluminum M6 Torx pan bolts (one-time-use)
- Torque converter seal (input shaft seal)
- Professional transmission cooler and line flush
What your vehicle’s computers will need after the swap:
What’s involved: Security/Immobilizer Re-marriage and Adaptation Relearn
The transmission's internal control module (mechatronics/EGS) must be synchronized with the car's anti-theft system (EWS/CAS) or the vehicle will not shift out of Park. Shift adaptation values must also be reset.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque converter must be fully seated (2-3 distinct clunks) before bolting transmission to engine to avoid cracking the front pump.
- AWD vs. RWD physical incompatibility.
- Immobilizer lock-out will keep the car stuck in Park until electronic synchronization is performed.
- Fluid level must be checked at a specific temperature (30C - 50C) with the engine running using a scan tool.
- Plastic oil pan uses single-use aluminum stretch bolts that must be replaced and torqued to 10 Nm.
Easy to get right once you know them:
- Buying the wrong drivetrain version (AWD vs. RWD).
- Ignoring the programming/immobilizer synchronization requirement.
- Failing to fully seat the torque converter, leading to a broken front pump.
- Using incorrect generic multi-vehicle ATF instead of ZF-Lifeguard 8.
- Reusing single-use aluminum pan bolts.
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: Replace plastic oil pan gasket, mechatronics connector sleeve seal, and oil cooler line connections.
🔎 Recommended at install: Address wear in the torque converter's lock-up clutch.
🔎 Recommended at install: Clone immobilizer data to replacement unit or virginize replacement unit; reset shift adaptation values.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-62474-2170513). 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
2013-2014 BMW X3 & 328i 2.0L ZF 8HP45 Transmission: Problems, Identification, and Used Replacement
Identify the exact AWD GA8HP45Z unit, learn what causes mechatronics and torque converter failures, and know when to swap in a quality used OEM transmission.
Read Full Guide →Related Trouble Codes (OBD-II)
5 matching guidesIf 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: 24008609704, GA8HP45Z
Fits Years: 2013 2014
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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