Specialist telematics battery repair — Crewe, UK

SOS Warning Light
on Your Dash? We Fix It.

Don't pay £400+ at the dealer. We repair the backup battery inside your car's telematics unit — the part that triggers "SOS Limited Functionality" and "Emergency Call System Failure" warnings.

View Services & Pricing 📞 Call Us Now
£49.99
Postal repair from
£180
Full fitting service
12mo
Warranty included
SOS Emergency call restricted warning on VW dashboard
SOS warning light on car dashboard
VCDS fault code scan showing B1916 backup battery fault
The Problem

What Does the SOS Warning Mean?

Your car's emergency call (eCall) system has a backup battery inside the telematics unit. This battery keeps the SOS function working even if the main battery dies — for example, in a crash.

Over time (typically 3–6 years), this backup battery degrades. When it can no longer hold a charge, your dashboard displays a warning and logs fault codes like:

B1916 F0 B1916 F2 U140000 B1052 07

The fix is straightforward — we replace the cells inside the telematics battery unit. No need for a brand new module, and a fraction of the dealership cost.

VW AG telematics battery unit opened for repair with tools
Services

Two Ways to Get Your Battery Fixed

Whether you want to post your battery to us or bring the whole car, we've got you covered.

📦

Postal Repair

Remove the telematics battery yourself (or have a local garage do it), post it to us, and we'll replace the cells and return it.

  • New cells fitted to your existing battery pack
  • Tested before return
  • Return postage included
  • 12-month warranty
  • Typically returned within 2–3 working days

⚠️ You'll need VCDS or OBD11 to reset the fault code once refitted.

£49.99

Inc. return postage & VAT

Most Popular
🔧

Full Fitting Service

Bring your vehicle to us in Crewe. We handle everything — diagnosis, removal, battery repair, refitting, and coding with VCDS.

  • Full diagnostic check
  • Telematics unit removal & refitting
  • Battery cell replacement
  • Fault code cleared with VCDS
  • 12-month warranty
  • Done in approx. 60 minutes while you wait
£180

Inc. VAT • No hidden costs

💬

Free Advice

Not sure what's wrong? Give us a call or send a message and we'll help you figure out if the telematics battery is your issue.

  • Help interpreting fault codes
  • Guidance on removing the battery yourself
  • Advice on which service is right for you
  • No obligation, completely free
Free

Call or message anytime

Compatibility

Vehicles We Cover

The telematics backup battery degrades over time in all modern vehicles with emergency call (eCall/SOS) systems.

VW Group
Volkswagen, Audi, Seat, Skoda & Cupra — all models with eCall
B1916F2 • U140000 • B1052 07
Jaguar / Land Rover
XE, XF, F-Type, F-Pace, E-Pace, Range Rover, Discovery, Defender & more
SOS Limited Functionality
BMW / MINI
All models from 2014 onwards with Intelligent Emergency Call
Emergency Call System Failure
Other Makes
Mercedes-Benz, Volvo, Toyota, and other vehicles with eCall telematics
Contact us to check
How it Works

Simple, Fast, Done Right

Whether you're posting the battery or bringing the car, here's what to expect.

01

Get in Touch

Call us or send a message with your vehicle details and fault code. We'll confirm the repair and tell you what to do next.

02

Send or Bring It In

Post the battery to us, or book a slot and drive to our workshop in Crewe (CW1 5UT).

03

We Repair & Test

We open the unit, replace the degraded cells with new ones, reassemble, and fully test before return or refitting.

04

Warning Cleared

Your SOS light is gone. Full fitting customers drive away with everything coded and cleared. Postal customers refit and reset.

Why Choose Us

How We Compare to the Dealership

Dealers charge a premium for what is a straightforward battery cell replacement.

SOS Battery Repair
Typical Dealership
Full fitting price
£180
£400–£600+
Postal repair option
£49.99
Not offered
Typical turnaround
60 mins (fitting) / 2–3 days (post)
1–2 weeks (parts on order)
Warranty
12 months
Varies
Fault code clearing
Included (fitting service)
Included
FAQ

Common Questions

What does the SOS warning light mean?
Your car's emergency call system has a backup battery that keeps the SOS function working even if the main battery dies. Over time (typically 3–6 years), this battery degrades and triggers a dashboard warning. The fix is replacing the cells inside the telematics unit.
Is my car safe to drive with the SOS warning?
Yes, the warning doesn't affect your car's ability to drive. It only means the emergency call system won't work on backup power. However, it can cause MOT advisory notes and may affect insurance in some cases.
What's the difference between postal and fitting?
With the postal service (£49.99), you or a mechanic remove the battery, post it to us, and we replace the cells and send it back. You'll need VCDS or OBD11 to reset the code. With the full fitting service (£180), you bring the car to us and we do everything.
How long does the repair take?
If you bring the car to us, we aim to have you back on the road within 60 minutes. For postal repairs, we typically turn them around within 2–3 working days.
What fault codes does this fix?
The most common are B1916F2 (VW Group — backup battery depleted), U140000 (insufficient voltage), and B1052 07 (mechanical failure). On Jaguar/Land Rover it shows as "SOS Limited Functionality" and on BMW as "Emergency Call System Failure."
Do you offer a warranty?
Yes, every repair comes with a 12-month warranty covering the replacement cells and our workmanship.
Get Started

Ready to Clear That Warning Light?

Get in touch today. We'll confirm the repair, give you clear instructions, and get your SOS system working again.

📞 Call 01270 295 285 ✉️ Email Us
Phone
01270 295 285
Email
SOSBatteryRepairs@outlook.com
Workshop
The Nursery, Buttertons Lane
Crewe, Cheshire CW1 5UT
Post Batteries To
SOS Battery Repair
The Nursery, Buttertons Lane
Crewe, CW1 5UT