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Mercedes FDCT Transmission P051300 Repair File Online Service – Fix Start Enable Not Issued

Mercedes P051300 DTC EEPROM / DFLASH File Repair for FBS3 & FBS4 7G-DCT Transmissions, Plug & Play Mercedes P051300 – Start Enable Not Issued can occur when the FDCT transmission's stored drive-authorization data becomes corrupted, commonly after low battery voltage or power loss. ARMHEX provides a specialized Mercedes FDCT transmission EEPROM/DFLASH file repair service for supported FBS3 and FBS4 7G-DCT applications. Instead of replacing the complete transmission control module, technicians can read the original transmission data, send the file to us for repair, and write the repaired data back to the same unit. We support w176, w177 A-class, w117, w118 CLA-class, w156, w157 GLA-class, and w246, w247 B-class vehicles.

Service Price

Mercedes P051300 File Repair Online Service

$350

100% Guaranteed to Work or Your Money Back

Buy the Service

Read the transmission files with the programmer and send us files, errors, and clear photos of FDCT on WhatsApp +1 (657) 229 1838 before buying.

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Service Overview

Repair Mercedes FDCT Transmission P051300 File – Fix "Start Enable Not Issued"

What We Do: Repair Mercedes "Start Enable Not Issued"
Compatible Vehicles: w117, w118, w246, w247, W176, w177 and w156, w157.
What's Included: FDCT P051300 Repaired File
Service Method: Worldwide Remote Online Service
Requirements: FDCT EEPROM/Flash, Programmer, Laptop, Internet
Turnaround Time: Less than an hour
Warranty: 100% Money-Back
Technical Support: Lifetime

Perfect for

Mechanics
Automotive Technicians
ECU Repair Shops

💡Problem Statement: When do You need the Service?

What Is Mercedes P051300 DTC Error in FDCT - Start Enable Not Issued?

DTC P051300 – The start enable was not issued is associated with the Mercedes drive authorization system. On affected FDCT transmissions, low battery voltage or power interruption can corrupt data stored in the transmission module memory. When the required drive-authorization information is no longer valid, the vehicle may fail to receive start authorization. Common technician/customer complaints include:

Engine Does Not Start

P051300 DTC: Start Enable Not Issued

Authorization Messages

Start authorization missing, FBS3/FBS4 authorization problem, FDCT drive authorization fault

Transmission/Gearbox Issue

Transmission/gearbox issue following battery voltage loss, weak, or discharged battery

Important Note

Read the Original File Before Other Repair Attempts

The repair should be performed using the original transmission file before previous repair attempts or SCN coding have modified the relevant data. If the transmission has already undergone unsuccessful programming, coding, virginizing, EEPROM editing, or another P051300 repair attempt, the original information required for a successful repair may no longer be intact.

Do NOT perform SCN coding first
Do NOT use modified files
Keep backups of the untouched original file
A corrupted or incomplete read cannot be reliably repaired
8G-DCT Not supported by this repair solution.

Brand names and product references are used only for vehicle compatibility identification.

✅ Solution

Mercedes FDCT EEPROM / DFLASH Repair

The repair is performed using the original binary data read from the FDCT transmission module. We process the file to repair the affected FBS3/FBS4 drive-authorization data associated with P051300, then return the repaired file for writing back to the original transmission module.

Step 1: Read original EEPROM/DFLASH data using a compatible ECU/TCU programming tool (128kb)
Step 2: Send us the Untouched original file.
Step 3: Get repaired file and write back.
Step 4: Install the FDCT, No SCN, Plug & Play

The Results

Mercede P051300 is Cleared

After writing the repaired data, turn the ignition OFF for 10 seconds, then restart the vehicle. The transmission should return to normal operation, restoring engine start authorization and proper gear shifting.

Before

P051300 Active

Start Enable Not Issued and FBS3/FBS4 Authorization Problem

After

FDCT File Repaired

Drive Authorization Data Restored and File Ready to Write Back

What To Expect After

BMW EME ISN is Synchronized

After processing, you receive a repaired binary file prepared for writing back to the original FDCT transmission module. The service is designed to address:

P051300 – "Start Enable Not Issued" Fixed

FBS3/FBS4 Drive Authorization Data Problem Fixed

🚗 Coverage & Compatibility

Supported Mercedes FDCT Transmissions

This file repair is intended for supported Mercedes 7G-DCT FDCT transmissions using FBS3 or FBS4 drive authorization.

Common Supported Mercedes Models

A-Class

w176, w177

CLA-Class

w117, w118

B-Class

w246, w247

GLA-Class

w156, w157

📋 Remote Session Process and steps

How the Mercedes P051300 Repair Works

A clear 5-step remote path — from compatibility check to post-service guidance.

Connect to ARMHEX

Any remote session starts here. Contact us on WhatsApp and check compatibility.
Buy the Service

Buy the service and schedule the service at your best time. We will send you the remote session software.
Read the Original FDCT Transmission

Connect a compatible programmer and make a complete backup of the original FDCT transmission data.
Send Us the Original File

Send the original EEPROM/DFLASH binary file before attempting SCN coding or other repair procedures.
Get Repaired File

Write the repaired EEPROM/DFLASH. Cycle the ignition, and you're done!

🔧 Requirements

What Tools do You Need?

Programming tools to read FDCT Transmission files
Stable Internet & Windows
Battery Maintainer
Scan tool to check the results

🕒 Turnaround Time

Typical Service Time

30–45

Minutes for the most compatible models.

❓ FAQ

Mercedes FDCT P051300 Repair FAQ

P051300 indicates “The start enable was not issued.” On affected FDCT applications, the problem can be associated with corrupted transmission drive-authorization data.

Low battery voltage or a significant power interruption is one known situation associated with corruption of the stored FDCT data and subsequent drive-authorization problems.

Not necessarily. If the problem is caused by repairable EEPROM/DFLASH drive authorization data, the original transmission module may be recoverable without replacing the complete transmission.

No. This service repairs the binary EEPROM/DFLASH data. It does not repair mechanical clutch, hydraulic, bearing, or internal transmission damage.

Yes, supported FBS3 7G-DCT applications can be processed.

Yes, supported FBS4 7G-DCT applications can also be processed.

No. This particular repair solution is for supported 7G-DCT applications and does not support 8G-DCT.

You need the original FDCT EEPROM/DFLASH binary data, typically around 128 KB for the applications covered by this service.

Yes. A FLEX read may appear as int_eeprom.bin.

No. Read and securely save the untouched original transmission data first. Previous coding or repair attempts can modify information needed for this repair.

Successful repair cannot be guaranteed if the relevant original data has already been changed. The best candidate is an untouched original read from the transmission before other repair attempts.

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Mercedes FDCT Transmission P051300 Repair Online Service

We provide a specialized Mercedes FDCT transmission dump repair service for supported FBS3 and FBS4 7G-DCT applications.

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