Mercedes ECM Repair in Hyderabad
ECU & Control Module Specialists
Metre Per Second offers expert Mercedes ECM (Engine Control Module) and ECU repair services. From ME/MED engine controllers to 7G-Tronic TCM and SAM modules, we diagnose, repair, and program all Mercedes electronic control units.
Expert Mercedes ECM & ECU Solutions
Mercedes vehicles use sophisticated electronic control modules that manage everything from engine performance to comfort features. Our specialists have the equipment and expertise to diagnose and repair these complex systems.
- ME/MED engine ECM repair and programming
- 7G/9G transmission control module service
- SAM (Signal Acquisition Module) repair
- Instrument cluster repair and coding
- Key programming and replacement
- Star Diagnosis online programming
ECM/ECU Diagnostic & Programming Equipment
Mercedes electronic control modules require factory-level diagnostic and programming equipment for proper diagnosis, repair, and coding. Our workshop has complete ECU service capability.
| Tool | System | Use Cases | Models Served |
|---|---|---|---|
| Mercedes Star Diagnosis (SD Connect C4/C5) | Complete ECU Diagnostics | All module fault codes, live data, adaptation values, guided fault finding, component testing | All Mercedes models 1996-2025 |
| Xentry Diagnosis Software (Latest) | Official Mercedes Diagnostic Platform | SCN coding, variant coding, control unit programming, software updates, VIN-specific configuration | All Mercedes platforms requiring online coding |
| DTS Monaco Engineering Software | Advanced Engineering Diagnostics | Parameter modifications, hidden adaptations, advanced variant coding, flash file editing, developer functions | W204, W205, W212, W213, W222, W223, X253, W167 |
| Vediamo Diagnostic Software | Component-Level Programming | Individual ECU flashing, CBF editing, variant programming, module replacement coding | All CAN-based Mercedes vehicles |
| FDOK/WIS Documentation | Technical Documentation | Wiring diagrams, ECU pin assignments, fault code definitions, repair procedures | Complete Mercedes range |
| CAN Bus Analyzer | Network Diagnostics | CAN communication testing, message timing, bus load analysis, gateway diagnostics | All networked Mercedes systems |
Mercedes Electronic Systems We Repair
Mercedes vehicles contain numerous electronic control modules connected via CAN bus networks. Our technicians are expert in diagnosing and repairing all Mercedes electronic systems.
- ME/MED Engine Management — Engine control unit managing fuel, ignition, emissions, and performance Components: ME/MED ECU, sensors, actuators, wiring harness, CAN interface. Services: ECU repair, component coding, sensor replacement, adaptation reset.
- SAM (Signal Acquisition Module) — Body control modules managing electrical consumers and networking Components: Front SAM, rear SAM, fuse/relay integration, power distribution. Services: SAM repair, consumer coding, fuse diagnosis, network repair.
- EIS (Electronic Ignition Switch) — Steering column module with key recognition and immobilizer Components: EIS module, key transponder, steering lock, CAN gateway. Services: EIS repair, key programming, immobilizer reset, lock replacement.
- TCM (Transmission Control Module) — Transmission control managing shift points, pressure, and adaptation Components: Conductor plate, solenoids, sensors, mechatronic unit. Services: TCM repair, adaptation reset, conductor plate replacement.
- Instrument Cluster (IC) — Dashboard display with vehicle information and warning systems Components: Display panel, stepper motors, processor, EEPROM, CAN interface. Services: Pixel repair, mileage correction, warning diagnosis, coding.
- Gateway Module (CGW) — Central gateway routing CAN bus communication between networks Components: Gateway processor, CAN transceivers, diagnostic interface. Services: Gateway diagnosis, network routing repair, module replacement.
Genuine Mercedes ECU Parts & Services
We use only genuine Mercedes-Benz electronic components and official programming procedures to ensure proper system function and compatibility.
| Component | Spec Code | Replacement Policy | Warranty |
|---|---|---|---|
| Engine Control Module (ECU) | Genuine Mercedes-Benz with SCN coding | When internal failure confirmed | 1-2 years |
| SAM Modules | Genuine MB or remanufactured OE | When water damage or circuit failure | 1 year |
| Transmission Control Module | Genuine MB / ZF OE | When internal failure or adaptation issues | 1 year |
| EIS/Ignition Module | Genuine Mercedes-Benz | When key recognition or lock failure | 1 year |
| Keys and Remotes | Genuine MB with programming | Lost/damaged or battery failure | 1 year |
| Sensors and Actuators | Genuine MB / Bosch / Continental OE | When faulty signal confirmed | 1 year |
Mercedes ECM/ECU Repair Specialists
Our electronic control module technicians bring specialized training and extensive experience in Mercedes-Benz ECU diagnosis, repair, and programming.
- Mercedes-Benz Electronics Specialist — Mercedes-Benz Global Training (Complete electronic systems, CAN bus, module diagnosis and programming)
- Xentry Programming Certified — Daimler AG (Online SCN coding, software updates, variant programming)
- CAN Bus Network Specialist — Bosch Automotive Training (CAN communication, gateway diagnosis, network troubleshooting)
- ECU Repair Technician — Electronics Repair Institute (Component-level circuit repair, BGA rework, EEPROM programming)
- Automotive Key Programmer — Mercedes-Benz Academy (EIS repair, key programming, immobilizer systems)
Specializations: ECU component-level circuit repair, SCN coding and online programming, CAN bus diagnosis and repair, SAM module repair and coding, EIS repair and key programming, Instrument cluster repair, Module replacement with coding transfer, Anti-theft system diagnosis
Mercedes Electronic Systems We Service
We service electronic control modules across the complete Mercedes-Benz range, from early CAN-based systems to the latest MBUX platforms.
| Model Range | Chassis Code | Key Systems | Common Issues |
|---|---|---|---|
| C-Class | W203, W204, W205, W206 | ME/MED ECU, Front/Rear SAM, EIS, TCM, CGW | SAM water damage, EIS failure, ECU faults |
| E-Class | W210, W211, W212, W213, W214 | ME/MED ECU, SAM modules, CGW, COMAND/MBUX | SAM corrosion, ECU sensor faults, gateway issues |
| S-Class | W220, W221, W222, W223 | Complex multi-ECU network, ABC control, COMAND/MBUX | Multiple module communication, ABC ECU, network faults |
| GLC / GLE / GLS SUVs | X253, X254, W166, W167, X167 | ME/MED ECU, 4MATIC control, transfer case module | Transfer case module, ECU faults, 4MATIC issues |
| A-Class / CLA / GLA | W176, W177, C117, X156, H247 | ME17 ECU, compact SAM, MBUX system | ECU sensor faults, SAM issues, MBUX problems |
| AMG Models | All AMG variants | AMG-specific ECU mapping, performance modules | ECU tuning issues, module communication, sensor faults |
Mercedes Control Module Services
Complete electronic control unit solutions for all Mercedes systems.
| Service | Description | Price (INR) |
|---|---|---|
| ECM Diagnosis | Complete engine control module diagnosis and report | ₹2,999 |
| ECM Repair | Engine control module circuit repair and testing | ₹15,000-45,000 |
| ECM Replacement | New ECM with programming and adaptation | ₹55,000-1,25,000 |
| SAM Module Repair | Front or rear SAM repair for electrical faults | ₹15,000-35,000 |
| TCM Repair | Transmission control module repair/replacement | ₹35,000-75,000 |
| Key Programming | New key cutting and EIS programming | ₹15,000-45,000 |
Common Problems & Solutions
| Problem | Solution | Cost (INR) |
|---|---|---|
| Check engine light with ECM fault | ECM diagnosis and repair or replacement | ₹15,000-1,25,000 |
| Car not starting (no crank) | EIS, SAM, or ECM diagnosis and repair | ₹15,000-75,000 |
| Transmission fault codes | TCM repair or replacement with programming | ₹35,000-75,000 |
| Random electrical faults | SAM module repair or replacement | ₹15,000-45,000 |
| Limp mode activation | ECM or sensor diagnosis and repair | ₹5,000-55,000 |
| Key not recognized | EIS repair or key programming | ₹15,000-65,000 |
Service Packages
- Module Diagnosis — ₹2,999: Full system scan, Fault analysis, Module testing, Wiring check, Written report
- Module Repair — ₹15,000+ (Most Popular): Circuit repair, Component replacement, Programming, Testing, 1-year warranty
- Module Replacement — ₹55,000+: New genuine module, Online programming, Coding transfer, Adaptation, 2-year warranty
How It Works
- Describe Symptoms — Share warning lights, starting issues, or electrical problems.
- Complete Scan — Full vehicle scan to identify affected modules.
- Module Testing — Isolate faulty module and assess repairability.
- Repair Quote — Detailed quote for repair or replacement.
- Expert Repair — Precision repair with component-level work if possible.
- Programming — Module programming and vehicle adaptation.
Frequently Asked Questions
What is an ECM/ECU?
The Engine Control Module (ECM) is the computer that manages your engine's fuel, ignition, and emissions. Mercedes vehicles have multiple control modules for different systems.
Can Mercedes ECMs be repaired?
Yes, many ECM issues can be repaired at component level without replacement. This can save 50-70% compared to new module costs.
What causes ECM failure?
Common causes include water damage, voltage spikes, internal component failure, and wiring issues. We diagnose the root cause.
Do you have Star Diagnosis for programming?
Yes, we use genuine Star Diagnosis with online access for SCN coding and module programming.
Can you add a spare key to my Mercedes?
Yes, we can program additional keys and replace lost keys for most Mercedes models.
What warranty do you provide?
ECM repairs carry 1-year warranty. Replacement modules come with 2-year warranty covering programming issues.
Customer Reviews
Engine was in limp mode with ECM fault codes. Metre Per Second repaired the ECM circuit board instead of expensive replacement. Car runs perfectly now. Saved me over ₹80,000!
Random electrical faults and lights going crazy. They diagnosed a water-damaged SAM module and repaired it expertly. All issues gone now.
Key stopped working suddenly. They repaired the EIS module and programmed a new key. Professional work with fair pricing.
Related Mercedes Services
Book Mercedes ECM Repair — Metre Per Second
Call +91 8555824915 or WhatsApp +91 8555824915 for a free quote.
Workshop: Plot No. M-8, Mahadevpuram, KPHB Road, Gajularamaram, Hyderabad, Telangana 500055