Mercedes PLD MR Replacement ECU – Fully Programmed Unit for Sale

Our Mercedes PLD MR replacement service supplies fully programmed engine control modules for MP1, MP2 and MP3 trucks. Each PLD/MR unit is pre-coded to your truck’s VIN, immobiliser and injection setup, giving you a true plug-and-play solution that minimises downtime and avoids expensive dealer programming.

The PLD/MR module is the heart of the Mercedes-Benz electronic diesel system. It manages fuel injection, engine timing, torque limits, emissions, and CAN communication. When this module fails or loses coding, the vehicle may refuse to start, enter limp mode, misfire, or show multiple communication faults.
Our Mercedes PLD MR replacement ECU restores full engine management with a fully configured, ready-to-install unit.

⭐ What Our Mercedes PLD MR Replacement Service Includes

We supply a fully programmed PLD/MR module ready for installation. Using specialised bench equipment, we transfer or recreate all required data, including:

VIN and immobiliser coding
Injector and cylinder configuration
Variant coding and torque settings
PTO, retarder and exhaust-brake options
Dashboard and gearbox communication parameters

Every replacement ECU undergoes full functional testing, including injector drivers, 5V/12V sensor supplies, CAN communication and fault-memory verification.

⚠️ Typical Symptoms Requiring PLD MR Replacement

A replacement unit is often necessary when the original module is water-damaged, burnt, corrupted, or no longer communicates. Common symptoms include:

No communication with diagnostic tools
Engine cranks but does not start
Random cutting out or misfire that follows the ECU
Multiple internal ECU fault codes
Corrosion on pins or inside the casing
Damage caused by previous repair attempts

If you’re unsure whether your ECU is repairable, you may send it in for assessment. We will determine whether repair or replacement is the most cost-effective solution.

🚚 Supported Mercedes-Benz Trucks

This service covers most MP1, MP2 and MP3 models:

Actros MP1 / MP2 / MP3
Axor MP1 / MP2 / MP3
Atego MP1 / MP2 / MP3

Suitable for long-haul, construction, rigid, and specialised trucks running PLD or MR engine systems.

🔧 Supported Part Numbers

We support a wide range of PLD/MR control units, including:

A0004462440
A0004461540
A0004462640
A0004462940
A0004463440

If your number isn’t listed, send us a photo or contact us for confirmation.

🔗 Related Products & Helpful Accessories

Aging wiring and connectors can cause poor performance and intermittent ECU faults. We recommend replacing worn connectors when fitting a new ECU.

Replacing cracked plugs or damaged keys alongside your new ECU ensures long-term reliability.

📘 Additional Information for Fleet Owners & Workshops

Our Mercedes PLD MR replacement ECU service is designed to support both individual truck owners and large fleet operators who rely on consistent engine performance. We understand the downtime costs associated with PLD/MR failures, which is why every replacement unit is programmed, verified, and backed by technical support. Whether you are maintaining a single Actros or managing a mixed fleet of Actros, Axor and Atego trucks, Autolectronix provides reliable, cost-effective solutions to keep your vehicles operating safely and efficiently.

💼 Why Choose Autolectronix for PLD MR Replacement?

Autolectronix has over a decade of experience specialising in Mercedes-Benz PLD/MR systems. Our workshop provides professional programming, repair and diagnostic services for heavy-duty vehicles.

Specialist PLD MR replacement & repair
Component-level ECU expertise
3–12 month warranty (service dependent)
Fast turnaround times
No fix, no fee on most electronic repairs
All units bench-tested before shipping

A pre-programmed replacement ECU is often faster, cheaper, and more reliable than dealer alternatives.

📞 Contact Autolectronix

For pricing, compatibility checks or to order a replacement PLD MR ECU:

📧 sales@autolectronix.co.za.dedi678.jnb2.host-h.net
📞 +27 31 700 1420
📍 Unit 4 Lubex House, 4 Ivy Road, New Germany, KZN, South Africa

We’re ready to help you get your Actros, Axor or Atego back on the road.

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