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Independent BMW Specialist in Harrow — Expert Servicing, Diagnostics & Repairs

A Small one man Workshop with Main Dealer Knowledge

Black BMW M135i parked inside a car workshop on a car lift.

Welcome to EFG Automotive – Independent BMW Specialists

Your local independent BMW specialist in Harrow. Run by a single experienced BMW technician with dealer-level tools and genuine expertise, I offer a personal, high-quality service covering everything from routine maintenance to complex electrical and mechanical repairs.

As a one-man specialist workshop, all work is carried out personally — ensuring dealer-level standards, attention to detail, and honest advice every time.

I combine factory-level BMW knowledge with a personal, appointment-only service. My small Harrow workshop is equipped with official BMW diagnostic software, programming tools, and precision equipment — allowing me to perform everything from approved servicing and software updates to advanced diagnostics and full engine rebuilds.

Because I work alone and take on each car personally, I operate strictly by appointment only. Please call before visiting, as the workshop is often fully booked and space is limited.

Servicing starts from £150 + VAT
Diagnostic investigation from £120 + VAT

Our BMW Specialist Services

BMW APPROVED SERVICING AND REPAIR

A car engine with multiple visible components including pulleys, belts, hoses, and valves, mounted on a stand in a workshop.

BMW Engine Maintenance

Specialised in BMW engine maintenance and rebuilds carried out to the highest standards. From complete engine replacement to precision VANOS repairs, our team ensures your BMW performs as it should. We also handle BMW-specific preventative maintenance, including rod bearing replacement on S65 and S85 engines – essential work to protect against known issues and extend the life of your performance engine.


Full engine rebuilds


Preventative rod bearing replacement


Heritage engine builds


Vanos rebuild service


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BMW Approved servicing

Full BMW servicing using only genuine OEM or upgraded parts and approved oils, ensuring your car is maintained to the highest standards. Update your BMW’s online and digital service history, keeping records exactly as the main dealer would. Every service also includes a detailed video health check, giving you complete transparency and peace of mind about the condition of your vehicle.


Update online & Idrive service history


BMW OEM or upgraded parts


Video inspection with every service


Free ISTA fault code scan & report


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Rear view of a black BMW M140i car inside an automotive workshop with tools and equipment around.

Diagnostics & Fault finding

Diagnostic and fault-finding services that are far superior to the main dealer. Our specialist knowledge and dealer-level equipment allow us to trace problems back to their true root cause, ensuring an accurate fix every time. As an independent BMW specialist, I have the flexibility to recommend the most effective and cost-conscious repair solutions, giving you reliable results without unnecessary expense – and getting your car back on the road quickly and with confidence.


Electrical and mechanical diagnostics


Photo and video evidence of fault


Book in today - no long wait time


No fix - no bill!


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Get in touch.

Looking to book your BMW in for servicing, repairs, retrofit or tuning? EFG Automotive is here to help with expert advice and transparent pricing. Call me today on 02080506358 today or fill out the contact form, and I will get back to you promptly.

Logo for EFG Automotive with a colorful striped design and text indicating they are independent BMW group specialists.

BMW OEM RETROFITS & FEATURE UPGRADES 

Car infotainment screen displaying app icons, including Phone, Music, Maps, Messages, Now Playing, BMW, Podcasts, Audiobooks, Calendar, and Settings; dashboard controls and start/stop engine button visible.

Full Screen Apple Carplay

We offer lifetime Apple CarPlay activation with full-screen functionality, giving you seamless integration for navigation, music, and hands-free communication. Unlike BMW’s official solution, which was originally offered on a subscription basis and often restricted to a split-screen display, our activation unlocks the complete CarPlay experience permanently. With genuine BMW software activation, you enjoy the exact same functionality as factory-installed CarPlay – but without ongoing costs or limitations.

Car's rearview camera display showing parking guidelines and a top-down view of the vehicle with proximity sensors.

OEM Reverse Camera Retrofit

We provide full BMW servicing using only genuine OEM or upgraded parts and approved oils, ensuring your car is maintained to the highest standards. We update your BMW’s online and digital service history, keeping records exactly as the main dealer would. Every service also includes a detailed video health check, giving you complete transparency and peace of mind about the condition of your vehicle.

The interior of a BMW car showing the steering wheel with control buttons, digital instrument cluster, and part of the dashboard with a touchscreen display.

Heated Steering Wheel Retrofit

We offer professional BMW heated steering wheel retrofits for models including the BMW G30 5 Series, carried out using genuine BMW parts and specialist coding. Our retrofit service integrates seamlessly with your car’s original systems, ensuring full factory functionality and an OEM+ finish. Adding a heated steering wheel not only enhances your BMW’s specification but also keeps your vehicle aligned with factory upgrade standards.

What I Offer:

  • BMW Approved Servicing – Fully compliant with manufacturer standards, including iDrive and online service history updates.

  • Advanced Diagnostics & Electrical Fault Finding – Genuine BMW diagnostic systems for accurate, efficient troubleshooting.

  • BMW Engine Repair Specialists – From rod bearing and timing chain replacement to full engine rebuilds.

  • Official BMW iStep Level Software Updates – Keep your car’s systems current and reliable.

  • Coding & Retrofits – Apple CarPlay, reverse cameras, digital dashboard upgrades, and more.

  • Independent, One-Man Specialist – Direct communication and genuine care for every vehicle.

Why Choose EFG Automotive:

  • Video Updates & Transparent Reporting – Receive video updates of your car during its visit. Every diagnostic report and finding is backed by video evidence for complete clarity.

  • One-to-One Advice – Speak directly with the technician who works on your car. No service advisors, no middlemen — just honest, expert communication.

  • Transparent, Upfront Pricing – All costs are clearly explained before work begins, with no hidden fees or surprises at the end of your bill.

What I Don’t Do (Yet):

  • Tyres

  • Air Conditioning Regas or Diagnostics

  • MOT

    Due to limited space, I don’t currently have the equipment to carry out the above work. However, expansion plans are already underway, and these services will soon become part of what I offer.