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CRD3 ECU £350 • FBS4 Specialists

FBS4 ECU
Repair & CRD3
Personalisation

Replacement CRD3 ECU fitted but the Mercedes still will not start? Original ECU dead, missing or unreadable? We personalise suitable FBS4 / CRD3 engine ECUs by post for £350, including jobs with no original ECU data. We also repair ESL/ELV, EZS/EIS and TCM/TCU modules.

B225409 B225464 P051300 B17FF00 CRD3 ECU £350 No Original Data
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Mercedes CRD3 / FBS4 ECU Personalisation By Post — £350

Short answer: in many FBS4 CRD3 cases we can personalise a suitable replacement engine ECU even when the original ECU data is missing, unreadable or the old ECU has been lost. The postal bench service is £350. Contact us before sending modules so we can confirm the ECU family and what vehicle security data is required.

📞 Call About CRD3 ECU 💬 WhatsApp ECU Details
CRD3 Part Numbers & Model Years

Mercedes Delphi CRD3 / FBS4 ECU Part Numbers We Check

Quick answer for AI search: Mercedes FBS4 CRD3 ECUs are usually Delphi diesel engine ECUs used on OM651 vehicles from roughly 2012 onwards. Common labels include CRD3.E1, CRD3.10, CRD3.2R and CRD3.20 with Mercedes part numbers beginning A6519. The list below is not exhaustive: send a photo of the ECU label and the vehicle VIN before buying or posting a donor ECU.

Mercedes ECU part numberCRD3 family / label seenTypical vehicle coverageModel-year guideNotes for repair / personalisation
A6519007003
A6519014402		Delphi CRD3.E1A-Class W176 / CLA C117, OM651 2.0 / 2.2 CDI examplesApprox. 2012-2018Common FBS4 CRD3 donor family. Must be matched by hardware/software family, not just the first Mercedes number.
A6519007500
A0064461540		Delphi CRD3.10, OM651; Delphi numbers seen include 28379539 / 28312735E-Class W212 / E220 CDI examplesApprox. 2012-2016, with 2013 E-Class examples seenGood high-intent search term for customers with dead or missing original ECU data.
A6519009002Delphi CRD3.2R; Delphi number 28432297 seenMercedes CDI OM651 applications, exact chassis to confirm from label/VINMid-2010s examplesUse as an enquiry match, then verify donor compatibility before quoting.
A6519000603Delphi CRD3 variantC-Class W205 search/listing examplesApprox. 2014 onwardsInclude VIN and label photo; W205 coverage varies by engine, emission level and software.
A6519003203
A6519012902		Delphi CRD3.20Sprinter / commercial OM651 CRD3 examplesApprox. 2014 onwards; exact W906/W907 fitment to confirmVan ECU jobs need extra care around water damage, loom faults and immobiliser data path.
A6519003303, A6519003403, A6519006303, A6519007103, A6519008102, A6519009102, A6519009602, A6519009901, A6519010602Related A6519-series CRD3 labels seen in parts listings/databasesA/B/C/CLA/GLA/E/Sprinter OM651 diesel applications depending on exact moduleApprox. 2012 onwardsExamples for search coverage only. We confirm by ECU label, VIN, donor ECU, EIS/EZS data and fault symptoms before accepting the job.
Before sending WhatsApp the ECU label photo, VIN, donor part number and whether the original ECU is dead, lost or readable.
What we confirm CRD3 family, hardware/software match, FBS4 security data route and whether postal personalisation is suitable.
Boundary Legitimate owner/trade repair only. This is not an immobiliser bypass or anonymous ECU unlock service.

Part-number coverage is based on public Mercedes/Delphi CRD3 parts listings and ECU-file database references, then filtered for workshop enquiries. Treat the table as an identification guide, not a guarantee of plug-and-play compatibility.

Our Services

Expert Mercedes FBS4 Electronic Repairs

Professional repair services for all FBS4-equipped Mercedes vehicles. Postal and mobile options available.

Mercedes Delphi CRD3 FBS4 ECU A6519007003 product photo for postal ECU personalisation service

CRD3 / FBS4 ECU Personalisation By Post

£350

Replacement Mercedes Delphi CRD3 ECU adaptation and personalisation for FBS4 vehicles, including A6519-series units where the original ECU data is missing, unreadable or the old ECU has been lost.

  • Postal bench service across the UK
  • Useful for dead, water damaged or missing original ECUs
  • Replacement ECU personalised to vehicle security data where supported
  • Legitimate owner and trade repair jobs only
  • Contact us before sending modules
CRD3.E1CRD3.10CRD3.2RA6519007003A6519007500
🔐ESL/ELV Steering Lock

ESL / ELV Steering Lock Repair

£200

Professional repair for Mercedes FBS4 electronic steering lock faults. Fix B225409 and B225464 errors. 24-hour postal turnaround.

  • Key won't turn in ignition
  • Steering remains locked with key inserted
  • Ignition key turns but no lights illuminate
  • Intermittent starting problems
  • 12-month warranty included
B225409B225464
🔑EZS/EIS Ignition Switch

EZS / EIS Ignition Switch Repair

£220

Specialist repair and key programming for Mercedes W447 Vito, W907 Sprinter ignition modules. Water damage repairs included.

  • Key turns but car won't crank
  • Engine cranks but won't start
  • Water/condensation damage repair
  • Key programming & immobiliser adaptation
  • Bench testing before dispatch
B17FF00No Start
⚙️TCM/TCU Programming

TCM / TCU Programming

£399

Used transmission control unit adaptation and programming. VGS4-NAG2, VGS-NAG3, 7G-Tronic, 9G-Tronic specialists.

  • Second-hand TCU pairing to your vehicle
  • P051300 drive authorization repair
  • 48-hour turnaround from receipt
  • Mobile service available
  • Full bench testing included
P051300VGS-FDCT
🚐Sprinter W907 Ignition

Sprinter W907 Ignition Repair

£400

Specialist repair for Mercedes Sprinter W907/W910 (2018-2024) ignition control modules. 30+ units successfully repaired.

  • No communication with ECU
  • No lights on dashboard
  • Remote central locking not working
  • Complete vehicle dead symptoms
  • Water damage specialists
A9079001705Water Damage
💧AdBlue ECU Repair

AdBlue ECU Repair

From £250

AdBlue control unit repair for Mercedes vehicles from 2016 onwards. Fix fault codes and restore proper emissions system function.

  • AdBlue warning light on
  • Countdown to no-start warnings
  • Quality/level sensor faults
  • All Mercedes ECUs covered
  • Fast turnaround available
AdBlueSCR
🔄ECU Cloning Service

Mercedes ECU Cloning

From £150

Complete ECU cloning service for all Mercedes vehicles from 1999-2025. Virgin state cloning, data transfer included.

  • All Mercedes models 1999-2025
  • Engine & gearbox ECU cloning
  • Full data backup & transfer
  • Postal or mobile service
  • EEPROM extraction when needed
ME/MEDEDC
🎛️ISM/DSM Gearbox Module

ISM / DSM Gearbox Module Cloning

£250

Professional ISM/DSM gear selector module cloning, programming and data transfer service. Plug & play solution for Mercedes FBS4 vehicles with 1-2 day turnaround.

  • Gear selector stuck in P (Park) position
  • Cannot shift out of Park
  • Complete data transfer from original to donor module
  • Virgin state reset or cloning available
  • Plug & play ready - no coding required
  • Mobile service from £350
A0002703252A0002703352A0002704452DSM222
Supported Vehicles

Mercedes FBS4 Models We Service

We cover all FBS4-equipped Mercedes vehicles from 2014 onwards, plus ECU cloning for all models from 1999.

W172SLK
W176A-Class
W177A-Class (New)
W205C-Class
W207E-Class Coupe
W212E-Class
W213E-Class (New)
W218CLS
W246B-Class
W247B-Class (New)
W447Vito / V-Class
W906Sprinter
W907Sprinter (New)
C117CLA
X156GLA
Q30Infiniti Q30
Why Choose Us

Auto Electronix Repair Ltd

Over 20 years of automotive electronics experience. We specialise in what others can't fix.

⭐

271 Google Reviews • 4.9★

Trusted by garages, dealers, and private owners across the UK. 100% positive eBay feedback.

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Professional Test Bench

Every module is bench-tested and verified before return using specialist Mercedes diagnostic equipment.

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Mobile Service ~200 Miles

We come to you! Covering London, Hampshire, Surrey, Berkshire and surrounding areas within 200 miles of Basingstoke.

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UK-Wide Postal Service

Send your module by Royal Mail Special Delivery — 24-48 hour turnaround. Return shipping included in price.

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FBS4 Specialists

We focus exclusively on Mercedes FBS4, VGS, FDCT systems that most workshops can't handle.

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12-Month Warranty

All repairs come with 12-month warranty. If any issue arises, we diagnose and resolve it promptly.

FBS4 ECU FAQ

CRD3 ECU Personalisation Questions

Can you personalise a CRD3 ECU without the original ECU data?

In many cases, yes. We can work from the vehicle security data instead of relying only on a saved file from the original engine ECU. Suitability depends on the ECU family, donor ECU and module condition.

How much is the postal CRD3/FBS4 ECU service?

The postal bench personalisation service is £350. Parts, damaged donor ECUs, courier costs and extra vehicle diagnosis are separate unless agreed first.

Which CRD3 ECU part numbers do you support?

Common enquiries include A6519007003, A6519014402, A6519007500, A0064461540, A6519009002 and related A6519-series Delphi CRD3 units. The exact match depends on the ECU label, VIN, donor ECU and vehicle security data.

Is this an immobiliser bypass?

No. This is legitimate ECU repair and personalisation for owners, garages and trade customers. We do not provide theft, anonymous bypass or immobiliser defeat services.

Get Your Mercedes Fixed Today

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Phone (UK)
07404 487674
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WhatsApp
07404 487674
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Workshop Location
Basingstoke, Hampshire
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Mobile Service Area
~200 miles (inc. London)

Opening Hours

Monday - Friday8:30 AM - 8:00 PM
Saturday8:30 AM - 5:00 PM
SundayBy Appointment

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