OBD-II Power Pack Connection
Connecting a regulated 12V backup power supply unit to the vehicle's OBD-II diagnostic port.
replacement Premium
Auxiliary 12V Battery Replacement & OBD Computer Memory Saver
Supplying continuous 12V backup power during battery swaps to preserve radio, seat, clock, and dashboard settings.
5–15 Min Response
12–48 Mo Warranty
21+ Areas
Service Highlights
- Preserves custom driver seat positions, radio presets, clock times, and climate control configurations
- Prevents anti-theft audio lockouts and lost ECU throttle body calibration data during battery swaps
- Replaces secondary auxiliary 12V batteries and backup capacitor packs in modern European luxury cars
Available In
Dubai • All major districts
Service Overview
What You Need to Know
In modern luxury vehicles—especially models from Mercedes-Benz, BMW, Audi, Porsche, and Range Rover—unplugging the primary starter battery completely cuts power to numerous onboard memory microchips. Disconnecting power without a backup supply can erase anti-theft radio codes, reset power window auto-up limits, lock navigation screens, drop electric seat memory positions, and clear engine adaptive transmission shift patterns. Furthermore, many modern European vehicles feature a dedicated secondary 12V auxiliary battery or capacitor pack designed to power brake-by-wire safety systems, active steering actuators, and stop-start accessories.
Our premium auxiliary power and memory-saver replacement service guarantees zero loss of vehicle calibration data during battery replacement. Our technicians connect digital power supply units to your vehicle's OBD-II port before removing the main battery cables, supplying continuous 12V backup power throughout the installation. Additionally, if your vehicle displays an 'Auxiliary Battery Malfunction' warning message, we supply and fit genuine auxiliary units on-site, restoring full functionality to your vehicle's safety features.
Why Choose This Service
Key Benefits & Advantages
Preserves custom driver seat positions, radio presets, clock times, and climate control configurations
Prevents anti-theft audio lockouts and lost ECU throttle body calibration data during battery swaps
Replaces secondary auxiliary 12V batteries and backup capacitor packs in modern European luxury cars
Seamless replacement process eliminating the need for expensive secondary dealership visits
Our Process
How We Do It — Step by Step
Transparent, methodical, and professionally executed.
01
02
Auxiliary Unit Location & Access
Accessing secondary auxiliary batteries (commonly situated in trunk side-panels or under seats).
03
Live Backup Battery Swap
Replacing the depleted auxiliary battery while backup power maintains live voltage across all circuits.
04
Diagnostic Fault Verification
Scanning instrument cluster to verify complete clearing of auxiliary malfunction warning messages.
Perfect For
Who Is This Service For?
Whether you drive a compact sedan, a luxury European sports car, or a heavy-duty 4x4 — this service is engineered for every vehicle type across Dubai.
Mercedes-Benz Displaying 'Auxiliary Battery Malfunction'
BMW Models with Comfort Access Systems
Audi & Porsche Advanced Electronics
FAQs
Common Questions
Why does my Mercedes-Benz or BMW have two separate batteries?
Modern luxury cars use a primary battery for engine starting and a secondary auxiliary battery to power safety systems, active steering, and electronics.
Ready When You Are
Need Auxiliary Power / Right Now?
Call our 24/7 dispatch team or send us a WhatsApp message with your location. We'll be on our way within minutes.
24/7 AvailabilityGenuine Parts5–15 Min Response