2007 V70 position light message

cliffordhubbard · Post by **cliffordhubbard** » 28 Oct 2018, 20:16

Thought it was rear fog light on right. Feeling good. Then read owners manual. Only left lamp affected. Cant seem to find. Suggestions? Thanks Cliff

Post by **RickHaleParker** » 29 Oct 2018, 01:41

Position lights AKA marker lights which mark the car's Position.

There is only one rear fog light, two would be easy mistaken for tail or brake lights.

Turn on the lights and do a walk around inspection, at night is best.

Georgeandkira · Post by **Georgeandkira** » 30 Oct 2018, 05:57

The reflectors in the rear tail light lower section can fool the eye---they fooled mine.

The smaller RW5 bulb (available only at Volvo dealers in my part of the world--didn't have time to mail order it) was the one I missed the first time around.

Remember to use dielectric grease....it lowers resistance and heat. One of my bulb holders was warped and scorched by heat.

cliffordhubbard · Post by **cliffordhubbard** » 30 Oct 2018, 18:39

Cannot locate burned out lamp. The lower rear lights seem to be ok. When i turn on the fog lamp, the warning come on more regularly.

Post by **Rattnalle** » 31 Oct 2018, 05:04

Position light message only covers the four bulbs in the rear lights. It should be pretty straightforward unless it's an electrical error rather than a bulb error.

cliffordhubbard · Post by **cliffordhubbard** » 31 Oct 2018, 06:09

must be an electrical issue then. thoughts?

Post by **Rattnalle** » 31 Oct 2018, 06:10

Clean all connectors and replace all bulbs.

Georgeandkira · Post by **Georgeandkira** » 31 Oct 2018, 06:22

Do remember that bulbs which aren't close enough in measurable resistance TO EACH OTHER (left-right pair) will trigger a "bulb out" warning.
a) I realize that sounds like hair splitting but don't laugh.
b) When bulb monitoring first appeared in my stable I measured my stash of bulbs and matched them.
Silly? I don't write the rules....nor would I include a hypersensitive bulb monitoring system in any car.

Also, the OP just returned with the phrase, "the warning come more regularly". That reminds me of my rear light woes from last Winter which involved 3 lamps and included an unsettled bulb holder.

At one point I had to stress one of the holders with a rubber band to maintain contact. During this dopey process the band would break or let go and require redoing. Finally it settled into a solid contact.

The funny part is that one holder was warped and scorched and required shaving with a razor blade to true up. That holder didn't give me any problem. The troublesome holder was just uncooperative.
The design is plainly stupid. It is possible to get the keyways wrong and jam things as you turn it into place. It's just too easy to bend the small metal contacts.
Always match-mark these holders to the body before removal.

Best of luck.