i4 EESS SE27 SME Postcrash repair operation manual 2805202591231

Repair manual price: 1200€ + Tax

This operation manual is a proprietary business secret that outlines the successful refurbishment process for repair of EESS SME and data recovery. By following the provided instruction steps, which include text, images, and videos, you will be fully equipped to repair the SME effectively and efficiently. Manual is non-refundable

You can charge this service: 3200€
You need 16 labor hours to deploy this repair if you are removing battery pack
BMW OEM CHARGE:
SME 1440€+tax
Front Connector 400e+tax
Labor 1200€+tax
Author: Vanja

Common causes:

Crash - Airbag deployment

Errors:

21F37E,
3B001A,
3B0044,

 Inside ISTA:

Vehicle management -> Service Functions -> Electric drive -> High-voltage battery unit -> SME, control unit exchange. Document serial number of all cell modules in ISTA

Part numbers:

6125884836201,
8845283-03, BMU
8846213-04,

Tools needed (prepare it) :

Workshop lift (PTC below the vehicle)
Allen key 5,6,7,8,9.10
Torx 5,6,7,8,9.10
Fluke Voltmeter
Repair kit - Replacement parts (LIST AVAILABLE HERE)
VVDI - CG100X - Xprog Programmer
Online file editor (Here included)
Original ISTA
ICOM + IMIB
HV Gloves
Hydraulic bench table - HV Battery

Repair operation steps

 Step 1:
Before performing any work on the eGolf high-voltage Drive unit, it is mandatory to prepare a controlled and safe working environment in accordance with high-voltage safety protocols. Lvl 3 HV Access license needed.

Read error codes with diagnostic tool and confirm you have same error codes and faults.

Secure the work area – The workspace must be clean, dry, clearly marked as an HV zone, and equipped with proper safety gear (HV gloves, face shield, insulating mat).

Disconnect the 12V system 

Perform safe high-voltage system shutdown – Using approved tools and following OEM procedures, disconnect the HV connectors and wait the required cool-down period for capacitor discharge.

Verify absence of voltage (Zero Voltage Verification) – Use an appropriate HV tester to ensure that no voltage is present in the system before...

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