Mercedes C350e Plug-In

The Mercedes-Benz C 350e is the plug-in hybrid variant of the W205-generation C-Class (2015–2018), offered as a Saloon and an S205 Estate. It pairs a 2.0-litre M274 turbocharged four-cylinder petrol engine with a 60 kW electric motor integrated into the seven-speed 7G-TRONIC PLUS automatic transmission, for a combined output of 205 kW (279 PS) and 600 Nm of torque. Drive is to the rear wheels only. 0 to 100 km/h takes 5.9 seconds. The 6.2 kWh battery (approximately 5.0 kWh usable) is water-cooled and mounted beneath the rear axle, delivering a real-world electric range of around 20 to 25 km (31 km on the NEDC test cycle it was homologated under), with electric-only running possible up to 130 km/h. The onboard AC charger is 3.7 kW single-phase, there is no DC rapid charging option, and the Type 2 port sits in the right-hand corner of the rear bumper.

Choosing a cable for the C 350e

The C 350e's onboard charger caps at 3.7 kW single-phase, so grid infrastructure doesn't change what the car can accept. Any wallbox rated 3.7 kW or higher delivers the same result: a full charge from empty in approximately one hour thirty minutes. Higher-rated supplies make no difference to the car itself, so cable choice comes down to what will serve the car cleanly and reliably, not to raw current headroom.

An 11 kW Voldt® Type 2 cable is the right match for the C 350e everywhere in the UK. Its 16A-per-phase conductors align exactly with the car's own single-phase ceiling of 16A, so the full 3.7 kW flows without restriction on any wallbox, whether that's a 7.4 kW UK home unit or a three-phase public post. A 22 kW cable is fully compatible too and worth considering only if a future vehicle with a higher AC charging rate is on the horizon.

The port is in the right-hand corner of the rear bumper. On a driveway, reversing in against the wallbox positions the port close to the unit and keeps the cable short and off the paintwork. UK kerbside charging, where the pavement-side post sits on the left, works less naturally as the port faces the road rather than the kerb, but for most C 350e owners home or car park charging is the daily norm, and the port location is well-suited to both. A 6-metre cable handles most driveway and garage setups. An 8-metre cable adds reach for public bays where the post is offset. 10 and 15-metre options cover longer runs to a detached garage, workplace charging, or shared parking with mixed bay orientations.

Charging where the wallbox doesn't reach

The 3.7 kW ceiling has one clear upshot: any socket that can safely deliver 3.7 kW gives a full charge in around one hour thirty minutes, and a UK three-pin outlet in about two hours. What matters isn't finding a fast source, but having the right cable for whichever outlet is available where the car happens to be parked.

At a red 16A three-phase CEE outlet, common at workshops, agricultural buildings, marinas, and some older commercial premises, the Voldt® 11 kW portable charger plugs in and delivers 3.7 kW to the car (drawing from a single phase of the three available), completing a full charge in around one hour thirty minutes. Worth keeping in the boot if your routine takes you regularly through workshop yards or industrial sites where red CEE is the outlet you'll find.

At a blue 16A single-phase CEE socket, the standard fitting on UK caravan sites and campsite hookup pillars, the Voldt® blue CEE portable delivers 3.7 kW and finishes a full charge in the same one hour thirty minutes. A single overnight at a holiday park or a long lunch stop with the plug in place from arrival is enough to leave with a full battery.

At a standard UK three-pin outlet, the Voldt® three-pin granny charger draws up to 2.8 kW within the limits of your ring main and socket condition, delivering a full charge in around two hours. A built-in thermal sensor monitors the connection temperature and reduces current automatically if the plug or socket begins to warm. For a battery of this size, the household wall socket is a genuinely practical everyday charging method, no wallbox required.

Engineered for the long haul

Voldt® charging cables carry CE, UKCA and TÜV certification. Both connectors are moulded as single pieces without glue or mechanical fasteners, so repeated plugging and unplugging doesn't loosen the housing over time. The IP67 enclosure is tested from -30°C to +50°C. Conductors are 100% copper with silver-plated contacts, and every cable is rated beyond 10,000 connection cycles. All Voldt® cables ship with a three-year warranty, 100-day returns, and free delivery across Europe.