Having just crawled out of the side window of a Merc ML into FREEZING water to get to dry land we noticed the air intakes on the Merc are either side of the radiator, facing forwards (admittedly towards the top). That got me thinking about the air intake on my tdv8 L322. Looks like it takes air...

New bulbs in place and when I switch the headlights on one comes on but dim. after a while it sometimes brightens up, sometimes not. Usually this faiult is on the nearside but not always. Other times the main beam light comes on on the dash and the main lights dont work at all. Pulling the stalk...