Mercedes Benz C-Class W204 E-Class W212 C207 SLK R172 M271 860 CGI Engine Control Unit ECU A 271 150 03 91 - Used Original Parts
RM 1,500
Condition: Used (Original)Description
Product Title
Mercedes Benz C-Class W204 E-Class W212 C207 SLK R172 M271 860 Engine Control Unit ECU A 271 150 03 91 - Used Original Parts
Diagnosis and Common Symptoms
The M271.860 CGI engine utilizes a sophisticated Siemens/Continental SIM271DE management system that is susceptible to specific failure modes. A primary cause of failure for the A 271 150 03 91 unit is oil capillary action, where oil from leaking camshaft adjusters travels through the wiring harness and enters the ECU connector, causing internal shorts. Common fault codes include P0606 (ECM/PCM Processor Fault), P0607 (Control Module Performance), and various communication errors via CAN bus (U-codes). Physical symptoms manifest as a "No Start" condition, the radiator fan running at maximum speed immediately upon ignition, or the vehicle entering a permanent Limp Home Mode with "ESP Inoperative" displayed on the instrument cluster. If your vehicle fails to communicate with a diagnostic scanner or shows intermittent ignition circuit faults, the ECU hardware is the likely culprit.
Introduction
At M.S. Motor, we specialize in the high-level electronics that govern German engineering, ensuring every component meets factory operating parameters. This Engine Control Unit is a Genuine Mercedes-Benz part, salvaged from a running donor vehicle and subjected to a comprehensive diagnostic health check to confirm processor stability. By opting for a Genuine used unit, you are ensuring that the internal architecture and thermal resistance match the exact requirements of the M271 turbocharged engine. Each unit is inspected for pin corrosion and oil intrusion to guarantee a reliable foundation for your vehicle's management system.
Product Details
- Brand: Mercedes-Benz
- Model Compatibility: W204 C200/C250, W212 E200/E250, C207 E-Class Coupe, R172 SLK200/SLK250
- Part Name: Engine Control Unit (ECU / DME)
- Part Number: A 271 150 03 91
- Engine Type: M271.860 (Turbocharged CGI)
- Condition: Genuine Used (Tested Working)
- Notes: Unit is sold as a "locked" donor. It requires professional synchronization or cloning to your vehicle’s Immobilizer (EIS/EZS) and keys.
Frequently Asked Questions
Q: What symptoms indicate failure? A: Common indicators include a crank-no-start condition, "Display Fault" messages on the dashboard, the cooling fan running at full speed without the engine being hot, and internal processor fault codes that cannot be cleared.
Q: Does this require coding? A: Yes. As this is a security-related component (Drive Authorization System), it cannot be "plug-and-play." You must have a qualified technician clone your original ECU data onto this unit or perform a "renew" and "personalize" procedure using specialized Mercedes-Benz diagnostic software.
Q: Is this original? A: Yes, this is a Genuine Mercedes-Benz factory-installed component. We do not stock aftermarket or third-party engine management hardware.
Why Choose Us?
- Verified functionality through physical bench testing and diagnostic communication.
- Actual photos of the unit provided to ensure part number and pin condition match.
- 30-day exchange warranty against hardware defects.
- Expert technical inspection performed to ensure the unit is free from oil contamination in the connector housing.
Shipping
Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)
Warranty and Return Policy
- 30-day exchange warranty from the date of receipt.
- Proof of professional installation by a qualified workshop is required for warranty claims.
- No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
- Exchange only for confirmed internal electronic defects.
How to Order
- WhatsApp us to confirm compatibility with your specific VIN.
- Send your chassis number or a clear photo of your old unit label.
- Confirm order details and stock availability.
- Receive actual product photos and diagnostic test confirmation.
- Make payment via bank transfer.
- Item is shipped immediately with tracking details provided.
Contact Us
William – https://wa.me/60102992988 Lok – https://wa.me/60177720143
Price Notice
Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.
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