Hi I have a 1997 W210 E420 and I'm trying to get to the brake light switch under the dash. I've read 3 different forums and understand how to do it. Having said that I have an issue. I can release all but one of the clips. It seems to be stuck. I've applied alot of pressure to get it lose. Nothing. Its the clip directly under ignition where you put the key in. HELP!!! Thoughts?

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1973 280 - Sold
1980 300SD - Sold
1982 240D - Stolen
1988 300E - Sold
1989 260E - Sold
1989 560SEL
1994 E420 - Sold
1997 E420
2005 CL500