S40 rear position bulbs

fleming164 · Sep 26th, 2017, 13:49

A while ago I replaced the rear position bulbs and brake light bulbs and noticed something strange about the position lamps.

The bulbs are dual filament, 21W and 5W. I thought these were only used on cars that share the same bulb for the position lamps and brake lights, but the S40 has separate 21W brake lights. These position lamps don't seem to illuminate with the other brake lights.

Are these used as a fail-safe in case a bulb goes out?

Tannaton · Sep 26th, 2017, 16:15

They are used as fog lights on some markets where legislation is for a combined position/flog light. That’s not the case in the uk.

Sep 26th, 2017, 13:49	#1
fleming164 Member Last Online: Apr 12th, 2024 00:04 Join Date: Aug 2016 Location: Southampton	S40 rear position bulbs A while ago I replaced the rear position bulbs and brake light bulbs and noticed something strange about the position lamps. The bulbs are dual filament, 21W and 5W. I thought these were only used on cars that share the same bulb for the position lamps and brake lights, but the S40 has separate 21W brake lights. These position lamps don't seem to illuminate with the other brake lights. Are these used as a fail-safe in case a bulb goes out? __________________ '07 XC70 D5 SE - 213,000mi / '08 Mini Cooper S - 108,000mi / '03 Audi TT 225 -140,000mi Ex: '06 S40 2.0D SE - 178,000mi / '00 Renault Clio 1.2 - 138,000mi

Sep 26th, 2017, 16:15	#2
Tannaton Bungling Amateur Last Online: Yesterday 23:34 Join Date: Aug 2014 Location: Beverley, East Yorks	They are used as fog lights on some markets where legislation is for a combined position/flog light. That’s not the case in the uk. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135

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