So today I am sitting in a parking lot, in my '98 E300 with the tranny in drive waiting for someone to come out of a building when I hear what sounds like my trunk lock release and sure enough the trunk pops open!

I know I didn't touch the release switch on the console and the remote was in the ignition so the release was tripped on its own...I didn't even think the trunk was supposed to open if the car was in drive (not sure about that though).

Anyway...I am thinking that maybe I was in an area with lots of stray RF signals (it was an industrial/office park) and so perhaps an alarm or security system just hit the right frequency/signal to tell the trunk to open. Has anyone experienced this? It's never happened before in my 3 years of ownership so I am not getting too worked up but I'd hate to have it happen while I was driving down the turnpike!

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I can't help with what caused it but I have seen/heard of this happening before.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

in the wiring related to the trunk lid release switch on the console or the switch itself?

Interestingly I tested today and found that while you can open the trunk while the car is in drive, if you are moving it over-rides the trunk release and won't open. So, at least it looks as though it won't open randomly on the highway...but at a stop sign...maybe!

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

If it's a short in the wiring to the PSE, the trunk won't open on the highway. If the fault is within the PSE itself, all bets are probably off.

Of course, that is correct...I am inclined to believe it was a fluke and perhaps some stray RF in the area I was in since it had never happened before and it is an area I have never been to before either...if it happens again I'll get concerned.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz