Coolant

Flushing the coolant system - here's the link.

Headlights

The headlamp lighting circuit on a Defender unfortunately routes the current destined for the headlight lamps through the steering column switches. This results in at least two problems. Firstly, there is excessive electric wear on the column switches as a good amount of current gets dumped through switch. Secondly, there is a voltage drop at the headlight lamps due to a combination of the run lengths and the small gauge cable used to route the power.

Click here to see our article and solution.