I've got the part and been told it's located in the front bumper. Does anyone have a detailed location? Do I reach this from under the hood or do I need to open the belly covers underneath? Anyone what side of bumper (driver, passenger) it's located on. Sorry but I get wicked vertigo when I'm on my back under the car so hoping someone can give me some better instructions to locate it. Thank you.

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1979 300SD 83k miles Astro Silver Metallic/Black leather #3447
1990 350SDL 202k miles (3L engine from an 87 300D)Black/Grey leather
2006 Pleasure-Way Class B MoHo (Sprinter chassis) 134k miles
2005 E320CDI 270k (car is sooo fast - I can't believe it's a diesel!!!)