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SMART

Smart Fortwo 451 Gearbox transmission Control Module A4519011600 – Original Used Part

RM 600

Condition: Used (Original)

At a Glance

  • Smart Fortwo 451 Gearbox transmission Control Module A4519011600 – Original Used Part
  • Part number: A4519011600
  • Fits: Smart Fortwo 451 · confirm by chassis number before ordering
  • Used Original · tested working
  • RM 600 · final quote via WhatsApp
  • M.S. Motor · Kuala Lumpur, Malaysia · ready stock

Diagnosis and Common Symptoms

In the Smart Fortwo 451 platform, the Transmission Control Module (TCM) acts as the brain for the automated manual gearbox. When this unit begins to fail, the most notorious indicator is the Three Horizontal Bars (3 Bars of Death) appearing on the instrument cluster instead of the gear indicator. You may experience a complete "no-start" condition because the module cannot verify the transmission is in Neutral. Common diagnostic fault codes include P0702 (Transmission Control System Electrical), P0805 (Clutch Sensor Circuit), or communication timeouts on the CAN bus. Physical symptoms often include jerky gear engagement, the vehicle getting stuck in a specific gear, or a total refusal to engage Reverse. If your clutch actuator and gear motors are verified as functional, the internal circuitry of the A4519011600 is likely the culprit.

Introduction

This is a Genuine factory-original Transmission Control Module specifically harvested from a donor Smart 451. Unlike aftermarket replicas that often struggle with communication protocols, this Genuine unit ensures seamless integration with the vehicle's existing electronics. Every module has undergone a rigorous bench test and vehicle-cycle test to confirm it processes shift commands and sensor feedback without latency. By choosing a verified Genuine used part, you maintain the factory shifting logic and reliability essential for the 451's unique drivetrain.

Product Details

  • Brand: Smart / Mercedes-Benz
  • Model Compatibility: Smart Fortwo (451) 2007-2014
  • Part Name: Transmission Control Module (TCM / TCU)
  • Part Number: A4519011600
  • Condition: Genuine Used (Tested Working)
  • Notes: This unit is housed in a high-durability casing. Please ensure your technician clears all stored fault codes in the SAM and ECU modules after installation.

Frequently Asked Questions

What symptoms indicate failure?

The most common signs are the three bars on the dashboard, the engine failing to crank, or the transmission failing to shift out of "N" or "R" despite the lever position.

Does this require coding?

Yes. For optimal performance, this module requires a "Teach-in" process using a Star Diagnosis (MB SD Connect) system or a high-level professional scanner to calibrate the clutch biting point and gear selector positions.

Is this original?

Yes, this is a Genuine Smart component. We do not stock generic or third-party transmission controllers due to high failure rates in those units.

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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