Hi guys, I bought a W115 '76 240D a year ago and have not been able to figure this situation out. I have only 1 key for the car that appears to be original and the head is oval (valet). However, it works in all of the locks (including the glove box) but not the trunk. It's my understanding that the valet key is NOT supposed to unlock both the trunk AND the glove box. So does this mean I actually have a regular key that was mistakingly cut on an oval key head, and the trunk lock has some other re-keyed lock on it? Since my pneumatic lock system is currently dead, the trunk stays unlocked at all times.