Multiple control modules
Body control, gateway, infotainment, battery management, driver assist, airbags, ABS/DSC — all communicating together.
Modern cars are basically computers on wheels — packed with control modules, network communication, and safety systems. We specialise in fault-finding properly (not guessing), so you don’t waste money on random parts.
Even “simple” symptoms can be caused by network communication, low voltage, water ingress, coding, or a module failing to sleep. Today’s vehicles often have:
Body control, gateway, infotainment, battery management, driver assist, airbags, ABS/DSC — all communicating together.
CAN/LIN (and sometimes FlexRay/ethernet). One fault can ripple into multiple warning lights and “random” issues.
Battery sensors, intelligent charging, start/stop, sleep states — a weak supply can trigger faults without any part being “dead”.
If it can be diagnosed safely at your home or workplace, we can usually handle it. Common jobs include:
Premium brands are brilliant when everything is healthy — but they’re also the ones where electrical faults are often caused by network communication, coding, or a single weak voltage supply affecting multiple systems at once.
Many BMWs rely on intelligent power management and multiple modules talking through a gateway. A “battery drain” can actually be an IBS/charging strategy issue, a module not sleeping, a weak earth, or a network wake-up event.
We test current draw properly, check sleep states, and confirm the cause before replacing parts.
Mercedes vehicles often use multiple networks and control units that depend on correct configuration. A fault can be triggered by voltage drop, water ingress, connector corrosion, or a module needing coding/adaptations after replacement.
We diagnose with live data and network checks to avoid “guess and swap” repairs.
If your car has intermittent warnings, random faults, or multiple systems failing at once, it’s usually not “bad luck” — it’s a root cause issue we can trace with proper diagnostics.
We support all major makes and models — petrol, diesel, hybrid and many EV-adjacent systems (12V side). If you don’t see your make listed, call us — we likely cover it.
We’re mobile and regularly travel along the M5 corridor. We typically cover a 50-mile radius around each main area.
Click a location to see the local landing page:
If you’re outside these areas we can often still help — we’ll just agree a fair call-out first, so everything is clear before we attend.
Quick answers to the most common questions we get.
Ready to get it sorted? Book online or call us now — we’ll confirm the details and get you scheduled in.