GA8HP45Z Mechatronic Transmission Valve Body TCM for BMW X3 F25 28iX
GA8HP45Z Mechatronic Transmission Valve Body TCM for BMW X3 F25 28iX
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GA8HP45Z Mechatronic Transmission Valve Body TCM for BMW X3 F25 28iX
From 04/2011 up to 01/2012
Part number: 24348612879
BMW Mechatronic Unit — Part Number 24348612856
Programmed to Your VIN, Plug and Play, 6-Month Warranty
This is the BMW mechatronic repair kit, part number 24348612856, supplied
programmed and coded to your vehicle by ECU Maverick. It arrives ready to
install, no dealer visit, no additional programming, no tow to the shop.
WHAT YOU RECEIVE
- Mechatronic unit, part number 24348612856
- Programmed and coded to your VIN before shipping
- Plug and play = install and drive
- 6-month warranty
- Core exchange required
PART NUMBER & SUPERSESSION
Current part number: 24348612856
Also written as: 24-34-8-612-856 · 24 34 8 612 856 · 24.34.8.612.856
This part supersedes two earlier revisions:
- 24348612880 (24-34-8-612-880) — discontinued, replaced by 24348612856
- 24348612879 (24-34-8-612-879) — discontinued, replaced by 24348612856
If the unit currently in your vehicle is stamped 24348612880 or 24348612879,
24348612856 is the correct direct replacement. All three numbers refer to the
same component in different production revisions.
FITMENT: CONTACT ECU MAVERICK BEFORE ORDERING
Mechatronic units are VIN-specific. Contact ECU Maverick with your VIN and
your existing part number and we will confirm the correct match before we
program and ship. We do not ship a unit we have not verified against your
vehicle.
COMMON SYMPTOMS THIS PART ADDRESSES
This unit integrates the valve body, solenoids and transmission control
module (TCM) into a single assembly. When it fails, common symptoms include:
- Transmission Malfunction / Drivetrain Malfunction warning on the dash
- Limp mode — transmission locks into a single gear and will not shift
- Complete loss of drive — no forward or reverse engagement
- Harsh, violent or banging shifts, especially 1st to 2nd
- Delayed engagement when selecting D or R
- Slipping, flaring or hunting between gears
- Failure to shift past a certain gear
- Rough shifting when cold that does not improve with a fluid service
- Shudder or vibration under light throttle at cruising speed
- Transmission fault codes that return after a fluid change and adaptation
reset
- Vehicle will not start or will not leave Park due to a mechatronic fault
Underlying causes are typically solenoid wear, pressure regulation failure
inside the valve body, contamination in the hydraulic circuit, or electronic
failure of the internal TCM. If your fault codes point to solenoid or valve
body failure and a fluid service has not resolved the issue, replacement of
the mechatronic is the correct repair.
HOW ORDERING WORKS
1. Contact ECU Maverick with your VIN and existing part number.
2. We confirm fitment and the correct part match.
3. We program and code the unit to your vehicle.
4. Unit ships plug and play — install and drive. No dealer programming.
5. Return your old unit as the required core exchange.
WARRANTY
6-month warranty covering failure of the mechatronic unit supplied. Warranty
does not cover incorrect installation, water or impact damage, unrelated
mechanical failure inside the transmission, or damage caused by contaminated
fluid or a missed adaptation reset after install.
CORE EXCHANGE
A core exchange is required.
Not sure if this is your part? Contact ECU Maverick with your VIN.
Is 24348612880 the same as 24348612856?
Yes. 24348612880 is a previous revision that was superseded by 24348612856.
24348612856 is the correct current replacement.
What replaced BMW part 24348612879?
24348612879 was replaced by 24348612856.
Will 24348612856 fit where 24348612880 was installed?
Yes — it is the direct replacement for that number.
Does this mechatronic need to be programmed?
ECU Maverick programs and codes it to your VIN before shipping. It arrives
plug and play, with no dealer programming required.
How do I confirm this is the right part for my car?
Contact ECU Maverick with your VIN and your existing part number. We verify
the match before programming and shipping.
Do I need to send in my old unit?
Yes. Core exchange is required — your original mechatronic must be returned.
What warranty is included?
6 months on the mechatronic unit supplied.
Can a mechatronic fault cause limp mode?
Yes. The transmission defaults to a single gear when the mechatronic detects
an internal fault, which is one of the most common symptoms of failure.
Remanufactured
We rebuild OEM control modules with upgraded components to prevent common failures. Unlike junkyard parts that may fail within months, our modules are thoroughly tested and backed by a 6-month warranty. If it fails under warranty, reprogramming is free.
How It Works
Ship us your faulty module. We extract your original data (VIN, mileage, key codes, calibrations) and transfer it to a remanufactured unit. Your old module is recycled for parts. You receive a plug-and-play replacement ready to install.
What to Expect
✓ Turnaround: 2-3 business days
✓ Warranty: 6 months
✓ Programming: Not required—plug and drive
✓ Core Required: Yes (your original module)
About ECU Maverick — OEM Remanufactured Plug & Play Control Modules
ECU Maverick supplies OEM-quality remanufactured control modules, pre-programmed and ready to install. Based in Fort Myers, Florida, we serve independent repair shops, dealerships, and vehicle owners nationwide.
Every module we sell is thoroughly tested, remanufactured to OEM specifications, and programmed to your specific vehicle. No dealer visits, no additional coding, no hassle, ust plug in and drive.
Vehicles We Support
We stock and program modules for European luxury and performance brands, including BMW, Mercedes-Benz, Audi, Porsche, Land Rover, Bentley, Ferrari, Lamborghini, Maserati, and Aston Martin. We also carry modules for domestic vehicles, heavy equipment, and marine applications.
Why Automotive Repair Facilities and Owners Buy From Us
Plug-and-Play Ready — Every module ships pre-programmed and coded to your VIN. No dealer required.
Fast Shipping — Most orders ship within 2–3 business days. Same-day rush available.
OEM Quality — Remanufactured to original equipment standards with component-level inspection and testing.
Direct Support — Text or call us to speak with a real person. We help you find the right module the first time.
6-Month Unlimited Mileage Warranty — Drive with confidence. Our warranty covers you regardless of how many miles you put on.
Our Commitment
We exist to keep your vehicle out of the dealership and back on the road—with quality parts, transparent pricing, and expert support from start to finish. Every module we sell meets the same standards we'd expect for our own vehicles.