Luxury Car ECU & Immobilizer Repair — Luxury ECU Specialists
We use the factory-level diagnostic and programming equipment to fix BMW, Mercedes, Porsche, and Jaguar/Land Rover modules that other shops can’t touch. Save $1,400–$3,500 vs dealer.
Why Luxury ECU Repair Is High-Stakes — And Why professional equipment Changes Everything
A dealer quote for a BMW CAS module or a Mercedes EIS/EZS replacement will hit $2,000–$4,000 before labor. Porsche and Jaguar/Land Rover modules routinely run $3,000–$5,000 new from the dealer. These aren’t luxury prices — they’re monopoly prices. The dealer’s only advantage is the programming tool.
We have the same programming capability as authorized dealers. We can read ISN data directly from BMW DME units without removing the MCU, recode Mercedes EIS and EZS modules, reset Porsche BCM security, and handle JLR KVM (Key and Vehicle Module) programming. All by mail. All in 48–72 hours.
Vehicles We Specialize In with the professional equipment
BMW / MINI
CAS1–CAS4+ key modules, DME/DDE coding, EWS anti-theft, N54/N55/S55/B58 engine computers
- 3 Series (E46, E90, F30, G20)
- 5 Series (E60, F10, G30)
- 7 Series (E65, F01, G11)
- X3, X5, X6, X7
- M2, M3, M4, M5, M6
ShipYourECU: Starting at $299
You save: $1,700–$3,900
Mercedes-Benz
EIS/EZS ignition switch, ECU/ECM repair, ISM (Integrated Supply Module), W204/W211/W212/W222
- C-Class (W204, W205, W206)
- E-Class (W211, W212, W213)
- S-Class (W220, W221, W222)
- GLE, GLS, AMG models
- Sprinter van ECU
ShipYourECU: Starting at $249
You save: $1,150–$3,550
Porsche
DME repair, BCM reset, key module programming — Cayenne, Panamera, Macan, 911
- Cayenne (2003–2023)
- Panamera (2010–2023)
- Macan (2014–2023)
- 911 (996, 997, 991, 992)
- Boxster / Cayman
ShipYourECU: Starting at $349
You save: $2,150–$5,150
Jaguar / Land Rover
KVM (Key & Vehicle Module), PATS, BCM, Gateway module repair — Range Rover, F-Type, Discovery
- Range Rover (L322, L405, L460)
- Range Rover Sport
- Discovery 3, 4, 5
- Defender 90/110 (2020+)
- F-Type, XE, XF, F-Pace
ShipYourECU: Starting at $299
You save: $1,500–$4,200
What Is the professional equipment?
The We use professional-grade automotive key programming and ECU repair equipment. Unlike generic scan tools, the professional equipment communicates directly with the module’s internal memory chip — without the need for soldering or chip removal. It’s the same class of tool used by authorized dealer technicians and advanced independent shops.
Key Programming
Add, program, or clone keys for BMW CAS/EWS, Mercedes EIS, Porsche BCM, and JLR KVM systems without dealer involvement.
ISN / Security Bypass
Read BMW ISN codes directly from DME/DDE memory for ECU replacement or repair without removing the MCU chip — non-destructive.
EEPROM Read/Write
Read and write EEPROM and flash memory on ECU boards — restores corrupted data, clears mileage discrepancies, repairs failed modules.
No Soldering Required
professional equipment connects via adapter interface — no desoldering chips, no risk of board damage. Safer than older EEPROM methods.
Dealer vs ShipYourECU — Cost Comparison
| Vehicle + Module | Dealer Quote | ShipYourECU | You Save |
|---|---|---|---|
| BMW CAS3/CAS4 Module | $2,200–$3,800 | From $349 | $1,850–$3,450 |
| BMW DME / DDE (Engine Computer) | $1,800–$4,200 | From $299 | $1,500–$3,900 |
| Mercedes EIS / EZS Module | $1,400–$3,500 | From $249 | $1,150–$3,250 |
| Mercedes ECU / ECM | $1,200–$2,800 | From $199 | $1,000–$2,600 |
| Porsche DME / BCM | $2,500–$5,500 | From $399 | $2,100–$5,100 |
| Jaguar/Land Rover KVM Module | $1,800–$4,500 | From $299 | $1,500–$4,200 |
Prices shown are for repair/reprogramming of existing modules. All repairs include a 6-month warranty and free return shipping. Dealer quotes based on national averages for parts + programming labor.
How It Works — Ship From Anywhere in the US
Package Your Module
Wrap the ECU, CAS, EIS, DME, or key module in bubble wrap or foam. Ship via UPS, FedEx, or USPS from any location in the country. We’ll confirm receipt by email.
We Diagnose & Repair
We connect your module to the professional equipment and run a full diagnostic. Most repairs are completed in 48–72 business hours. We contact you with a repair summary before return shipping.
It Ships Back, Repaired
Your module ships back programmed and plug-and-play ready. Ground shipping included free. Expedited return available. 6-month warranty covers the repair.
Get a Free Quote for Your Luxury Vehicle Module
Tell us your vehicle make, model, and what module needs repair. We’ll respond within 2 business hours with a quote and turnaround estimate.
Frequently Asked Questions
Can you really repair a BMW CAS module without going to the dealer?
Yes. The professional equipment reads and writes the ISN security code and key data directly from the CAS module’s memory — the same operation dealers charge $2,000–$4,000 to perform. We’ve repaired hundreds of BMW CAS units. The repaired module is plug-and-play on your vehicle.
What’s the difference between ECU repair and ECU replacement?
Replacement means buying a new or used module and reprogramming it to your VIN — often requiring dealer-level tools and costing $1,500–$5,000+. Repair means we fix the existing module: replacing failed capacitors, relays, or memory chips, then reprogramming — typically for $149–$499. Repair is always preferable when possible because your existing VIN data is preserved.
How do I ship my module safely?
Wrap the module in two layers of bubble wrap or foam, place in a rigid box with padding on all sides, and seal with tape. Avoid plastic bags alone — static can damage EEPROM chips. Ship with insurance and tracking via UPS, FedEx, or USPS Priority Mail. Email us the tracking number after shipping.
Do you guarantee the repair will work?
Yes. If we cannot repair your module, we ship it back at no charge and you owe nothing. If the repair fails within 6 months of return, we repair it again at no cost. Our money-back guarantee is absolute.
Can you handle Porsche DME repair by mail?
Yes. Porsche DME (Digital Motor Electronics) units for Cayenne, Panamera, Macan, and 911 models are all compatible with our professional equipment repair process. We handle Bosch ME7, ME9.6, and other common Porsche ECU variants. Turnaround is standard 48–72 hours.