BMW E39 528i Transmission Control Module TCM 0260002433 - Used Original Parts
RM 650
Condition: Used (Original)At a Glance
- BMW E39 528i Transmission Control Module TCM 0260002433 - Used Original Parts
- Part number: 0260002433 / 1423025 / 31036GB501 / 0037423100 / GSA.70 / GCC104077
- Fits: BMW E39 5 Series · confirm by chassis number before ordering
- Used Original · tested working
- RM 650 · final quote via WhatsApp
- M.S. Motor · Kuala Lumpur, Malaysia · ready stock
Diagnosis and Common Symptoms
A failing Transmission Control Module (TCM) on the E39 528i typically presents with harsh or delayed gear shifts, the transmission entering "limp mode" (locked in 3rd or 4th gear), or the gearbox refusing to shift out of Park. Common fault codes logged include EGS-related faults such as 4-3, 6-1, or 46-8C related to internal relay failure, solenoid circuit faults, or module communication dropout (loss of connection to DME/EWS). Drivers often report the "Trans Prog" light flashing on the dashboard, sudden failure to engage Drive or Reverse, or intermittent shifting issues that worsen with engine heat. In many cases, the module's internal capacitors or soldered relay points degrade over time, causing electrical dropout even when the mechanical transmission itself remains healthy.
Introduction
This is a Genuine Used BMW E39 528i Transmission Control Module (TCM), part number 0260002433, pulled directly from a running donor vehicle. Every unit we supply has been Tested for continuity, relay function, and internal circuit integrity before listing, ensuring it is not simply "pulled and sold" but verified to a functional standard. For workshops and owners looking to avoid the high cost and long lead time of a new module, this Genuine used option offers a reliable, factory-matched replacement. Sourced from an original BMW harness assembly, it retains the correct calibration data expected for this chassis and engine pairing.
Product Details
- Brand: BMW
- Model Compatibility: E39 5 Series, 528i
- Part Name: Transmission Control Module (TCM / EGS)
- Part Number: 0260002433
- Condition: Genuine Used (Tested Working)
- Notes: Removed from a confirmed working E39 528i donor unit; internal relay and solenoid driver circuits bench-tested prior to listing; recommend verifying VIN/part number match against your existing module before ordering, as EGS units are model and engine specific.
Frequently Asked Questions
What symptoms indicate the TCM on my E39 528i is failing, not the transmission itself?
If the gearbox is mechanically sound but you experience random limp mode, delayed engagement into gear, or intermittent loss of communication with the EGS system without any fluid leaks or grinding noises, the TCM is the likely cause rather than the transmission hardware itself.
Does this 0260002433 TCM need to be coded or programmed after installation on the E39 528i?
Yes, the replacement TCM typically requires adaptation via BMW-specific diagnostic software (such as INPA or ISTA) to relearn shift points and sync with the DME. We recommend having this done by a qualified BMW technician to ensure smooth shift behavior after install.
How do I confirm this module is the correct fit for my E39 528i?
Confirm the part number 0260002433 printed on your existing module housing matches exactly, and cross-check that your car is the 528i variant with the corresponding automatic transmission code, as the E39 range used several TCM variants depending on engine and gearbox combination.
Is a used TCM reliable, or should I wait for a new one?
New replacements for this part are largely unavailable or extremely costly through official channels since production has ceased. A tested used unit, like ours, offers a cost-effective and readily available alternative, especially useful in Malaysia where new stock is scarce and import lead times are long.
Are there any installation gotchas I should know before fitting this TCM?
Ensure the battery is disconnected before installation to avoid electrical faults, and double check the connector pins are clean and undamaged, as corrosion on the harness side is a common cause of repeat failure even after installing a good module.
Part price does not include installation. Our workshop can install for you, labour is charged separately and confirmed with you before any work starts.
We cannot diagnose your car over WhatsApp or photos. Not sure this part will solve your problem? Come for a workshop check, diagnosis fee RM180. If you proceed with the repair using our parts, the RM180 is offset into the labour charge. If you decide not to repair, only the RM180 applies.
All parts are tested and guaranteed to work. Whether a part solves your car's problem can only be confirmed by diagnosis.
Shipping: from Kuala Lumpur, West Malaysia ~RM50, East Malaysia ~RM80 (estimate, confirm via WhatsApp). Delivery 1-2 working days in secure anti-static packaging.
Warranty: 30-day exchange for control units, engines, gearboxes and other major parts; 14 days for small parts. Claims require proof of installation by a qualified workshop. No warranty for items opened, modified, or damaged by wrong installation.
Prices vary with stock and part condition. Final price via WhatsApp.
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