MEEC04 MERCEDES CPC 3
CV BALL nb
Mercedes mp4 CPC-3 Powertrain Controller

Mercedes CPC 3 Control Unit MP4 repair

£1,195.00 exc VAT

Full repair of your Mercedes MP4 CPC-3 Control Unit

CV Electronics The UK’s Premier Commercial Vehicle Electronics Remanufacturer

CV Part No. MEEC04

TURNAROUND TIME ON THESE UNITS IS APPROX:  1-2 DAYS

–Phone us on 01246 925500–

Contact us to arrange a free collection of your Mercedes MP4 CPC-3 Control Unit

Enquire Now
SKU: MEEC04 Categories: , , , , , , , , , , , , , Tags: , , , , , , ,

Description

Mercedes CPC 3 Control Unit MP4 repair

A common Euro 6 ECU to fail is the Mercedes CPC 3 fitted to Mercedes MP4 Actros, Arocs, Antos, Atego, EvoBus, Citaro, Econic, Unimog, Setra and Tourismo.
Frequently on back order with Mercedes and approx. £3200.00  After extensive investment and much R&D CV Electronics can successfully remanufacture your Mercedes CPC 3 unit, in as little as 1 day your truck can be back on the road for £1195.00 with a 2-year warranty.
 

CV Electronics The UK’s Premier Commercial Vehicle Electronics Remanufacturer

–Phone us on 01246 925500–

TURNAROUND  TIME ON THESE UNITS IS APPROX:  1-2 DAYS
CV Part No. MEEC04
CV Electronics are based in the UK, we will repair your Mercedes CPC 3 unit to go back on the same vehicle so there are no coding/programming issues.
 
We can collect any unit FOC from any UK mainland address. For our international customers if you contact us directly, we can advise you as to what you will need to put on any customs/export paperwork to make sure when you send us your CPC unit it gets to us as quick as possible.
 
Once we receive your CPC 3 unit the remanufacturing process can be as quick as 1 day. We then return your unit back to you using UPS and more often than not your unit will be delivered back to you within 2-3 days worldwide, next working day for Europe and our UK customers.
 
When you have received your CPC 3 unit back it can then be refitted back to the same vehicle “plug & play” fashion no need to code or re-program it. You will also have the peace of mind of a 2-year warranty on your newly remanufactured CPC 3 .
 
2 Year Warranty

Full repair of your Mercedes MP4 CPC-3 Control Unit

_____________________________________

Your Mercedes CPC 3 will be returned fully reconditioned and ready to be re-fitted to the same vehicle it came off, saving you the time & expense of having a new Mercedes CPC 3 programmed to your vehicle.

Good service is everything to us and we would love the opportunity to prove that to you.  We specialise in the remanufacturing of Instrument Clusters, ECU’s, Adblue Pumps and can repair the majority of the other Electronic parts on Volvo, Scania, DAF, Mercedes, MAN, Iveco, Alexander Dennis, Optare and Wrightbus.

We collect your parts free of charge and aim to turn them around the following day. All parts we service have a 24 month warranty.

Our Customer Portal allows you to have full visibility of your part/s during its refurbishment journey. It not only allows you to access the status of your current jobs but also previous jobs & invoices for ease of use.

The company has over 60 years of experience and are always happy to assist you with any technical assistance we can. Feel free to contact us if you wish to discuss the faults you are experiencing before sending in your parts.

OEM part numbers and descriptions are used for identification purposes and reference purposes only and not to indicate any endorsement by the OEM.

prices are exclusive of VAT

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Customer Portal

Our customer portal provides secure access for customers to view and manage all their jobs in one place.

You can see both current and past work, track progress and status updates, read notes, make payments, arrange collections, and respond to messages.


The portal also allows you to submit new enquiries quickly and easily.


Click here to log in or register.

Contact us

 Phone:  +44 (0)1246 925500
Address:

 Unit 1 McGregors Way

Turnoaks Business Park

Chesterfield

S40 2WB


Please leave us a review using the link below.

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Part Numbers

CPC3, CPC-3, CPC 3,

0034462802, 0034466302, 0034466502, 0034467202, 0034466002, 0034466102, 0034466402, 0034466602, 0034467302, 0034467002, 0034467402, 0034467602, 0034467702, 0034463002, 0034467102, 0034467502, 0034462902, 0034463102, 0044465802, 0044467702, 0044467602, 0044468402, 0044468602, A 003 446 28 02, A 003 446 63 02, A 003 446 65 02, A 003 446 72 02, A 003 446 60 02, A 003 446 61 02, A 003 446 64 02, A 003 446 66 02, A 003 446 73 02, A 003 446 70 02, A 003 446 74 02, A 003 446 76 02, A 003 446 77 02, A 003 446 30 02, A 003 446 71 02, A 003 446 75 02, A 003 446 29 02, A 003 446 31 02, A 004 446 58 02, A 004 446 77 02, A 004 446 76 02, A 004 446 84 02, A 004 446 86 02, A 003 446 74 02, A 004 446 48 02, A 004 446 56 02, A 004 446 57 02, A 003 446 28 02, A 003 446 47 02, A 003 446 56 02, A 003 446 58 02, A 003 446 61 02, A 003 446 63 02, A 003 446 64 02, A 003 446 65 02, A 003 446 70 02, A 003 446 71 02, A 003 446 72 02, A 003 44 673 02, A 003 446 74 02, A 003 446 75 02, A 003 446 76 02, A 003 446 77 02, A 003 446 87 02, A 004 446 47 02, A 004 446 56 02, A 004 446 57 02, A 004 446 58 02, A 004 446 66 02, A 004 446 76 02, A 004 446 85 02, A0034462802, A0034464702, A0034465602, A0034465802, A0034466102, A0034466302, A0034466402, A0034466502, A0034467002, A0034467102, A0034467202, A0034467302, A0034467402, A0034467502, A0034467602, A0034467702, A0034468702, A0044464702, A0044465602, A0044465702, A0044465802, A0044466602, A0044467602, A0044468502, A0044467702, A0044464802, A0044465902

Fitted to

Trucks

  • Mercedes-Benz Actros (MP4 / New Actros)
    • Years: 2011 – Present
    • Euro Spec: Euro 5, Euro 6

  • Mercedes-Benz Antos
    • Years: 2012 – 2026
    • Euro Spec: Euro 6

  • Mercedes-Benz Arocs
    • Years: 2013 – Present
    • Euro Spec: Euro 6

  • Mercedes-Benz Atego (New Generation)
    • Years: 2013 – Present
    • Euro Spec: Euro 6

  • Mercedes-Benz Econic (New Generation)
    • Years: 2013 – Present
    • Euro Spec: Euro 6

Buses & Coaches (EvoBus / Daimler)

  • Mercedes-Benz Citaro (C2)
    • Years: 2011 – Present
    • Euro Spec: Euro 6

  • Mercedes-Benz Tourismo (New Generation)
    • Years: 2014 – Present
    • Euro Spec: Euro 6

  • Mercedes-Benz Intouro (Euro 6 Generation)
    • Years: 2014 – Present
    • Euro Spec: Euro 6

  • Setra ComfortClass & TopClass (S 500 Series)
    • Years: 2012 – Present
    • Euro Spec: Euro 6

Common Faults:-

  • Total Loss of Accelerator Pedal Response: The truck idles normally, but stepping on the accelerator pedal does nothing. This frequently persists even after changing the physical pedal or checking the wiring harness.

 

  • No-Start Conditions: The truck may crank but will not start, often accompanied by an "Immobilizer Active" message on the dashboard. 

 

  • Transmission Unresponsiveness: The transmission fails to shift or coordinate, and the "N" (Neutral) indicator disappears entirely from the instrument cluster.

 

  • Intermittent Heat-Related Failures: The truck may start and drive perfectly when cold, but once the engine bay or cab heats up, the unit cuts out or drops into emergency limp mode. 

 

  • CAN-Bus / Communication Blackouts: Total communication loss occurs between the CPC-3 and other major control modules like the MCM (Engine), TCM (Transmission), ACM (Aftertreatment), or ESP/EBS (Brakes). Diagnostic scanners will often throw a "Module Not Detected" error. 

 

    • Missing Dashboard Telemetry: The AdBlue fluid level reading drops completely off the instrument display.

  • blowing fuses
  • accelerator pedal fault
  • comms faults
  • connector damage
  • fault codes in unit
  • intermittent faults
  • unit dead

Fault Reporting

Diagnose your fault quickly

Accurate Diagnostics = Better, Faster ECU Remanufacturing

Providing clear and detailed fault information is one of the most important steps in the remanufacturing process. The more accurate the diagnostics, the faster we can identify the root cause, reduce turnaround times, and ensure a reliable repair.

To help us deliver the best possible results, please include the following information when sending your unit:

Fault Description

Give a clear, simple explanation of the issue as observed by you or your technician.

  • What is the vehicle or system doing?
  • What is it not doing that it should?

A concise description helps us quickly understand the symptoms and focus on the right areas.

When the Fault Occurs

Understanding when the issue happens is key to identifying patterns.

Please let us know if the fault appears:

  • During start-up
  • Only at operating temperature
  • In specific gears or modes
  • Under load or acceleration
  • Intermittently or consistently

This information allows us to replicate real-world conditions and pinpoint the cause more efficiently.

Diagnostic Trouble Codes (DTCs)

  • Include all fault codes retrieved using a diagnostic tool
  • These provide a vital starting point in identifying affected systems or components

DTCs combined with live data give us a much clearer picture than codes alone.

Live (Real-Time) Data

Where possible, include relevant readings from your diagnostic equipment, such as:

  • Battery and charging voltages
  • Sensor values (temperature, pressure, position, speed, etc.)
  • Actuator positions
  • Any readings that appear abnormal or out of range

Live data helps us verify faults, confirm component behaviour, and accurately reproduce the issue during testing.

Why This Matters

Accurate and detailed diagnostics allow us to:

  • Identify faults faster
  • Reduce unnecessary testing
  • Improve repair accuracy
  • Minimise turnaround time
  • Ensure long-term reliability of the ECU

If you’re unsure about any of the above, feel free to get in touch — our team is always happy to help.

MEEC04 MERCEDES CPC 3

Mercedes mp4 CPC-3 Powertrain Controller

CV Electronics Ltd are based in the UK. We can collect any unit FOC from a UK mainland address. International collections charges will be added on to your invoice, feel free contact our service team who will be happy to quote you on international collections charges.  Please ensure that your items for repair are securely packaged.

Collection Request Form


 

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© 2026 CV ELECTRONICS. The UK's Premier Commercial Vehicle Electronics Remanufacturer.

Commercial Vehicle Electronics Ltd. Trading as CV Electronics Ltd. Unit 1, McGregors Way, Turnoaks Business Park, Chesterfield, S40 2WB Company No. 12471495  VAT Reg No 345 8092 83