Originally Posted by BoxsterSteve (Post 489999)

A bit more info, please.
How many miles?
Any suspension work done at all?
Any engine work done?
Where's the noise coming from; front, back or one particular side?

Originally Posted by PaulE (Post 490001)

If all of you suspension bushings, motor mounts, etc are good and there are no mechanical issues causing the squeak, you may want to apply some Gummi Pflege to all of your weather stripping - frunk and trunk lids, clamshell, convertible top windshield header and doors. Gummi Plege is available from Amazon, Autogeek, and other auto detailing suppliers. Even though the Boxster was designed as a convertible an open top car is generally more flexible than a closed top car, when the unit body flexes a little over the bumps, something rubs a little bit and causes a squeak. You can also step on the gas or turn up the radio, or both!

Originally Posted by Giller (Post 490003)

Try pushing down on the car over the wheel - do this for every wheel and see if you can replicate the sound - that might at least narrow down where the sound is coming from.
What year is your car? KM's are low (miles) but age can dry out suspension parts - something might just need some lubrication?

Originally Posted by PaulE (Post 490001)

If all of you suspension bushings, motor mounts, etc are good and there are no mechanical issues causing the squeak, you may want to apply some Gummi Pflege to all of your weather stripping - frunk and trunk lids, clamshell, convertible top windshield header and doors. Gummi Plege is available from Amazon, Autogeek, and other auto detailing suppliers. Even though the Boxster was designed as a convertible an open top car is generally more flexible than a closed top car, when the unit body flexes a little over the bumps, something rubs a little bit and causes a squeak. You can also step on the gas or turn up the radio, or both!

Originally Posted by Timco (Post 490097)

Sway bar bushings or drop links.

Originally Posted by Shoeless (Post 490167)

Do they normally need replaced?

Originally Posted by Timco (Post 490191)

Originally Posted by RandallNeighbour (Post 490203)

to find squeaks I have also asked a friend to stand inside both trunks and jump up and down while I go around the car and listen for the sound.

This seems to be a lot better for the car compared to potentially bending metal pushing down on fenders and quarter panels and your friend can get a lot more suspension travel out of moving up and down in the trunks.by

BTW, I do this in my garage where grabbing on to a rafter is available for stabilization.

Originally Posted by jakeru (Post 490249)

I used gummi phlege for the first time last weekend, treating the rubber and a few plastic components, and it seems as soon as it rained, away ran the gummi phlege. (In other words, it seemed like water soluble stuff.) the water also carried a bit of a film where it drained. I had a similar experience with 303 aerospace protectant, carrying a similar looking film when water hit it. Do you guys who use it notice the same?

I suppose gummi-phlege and 303 could be long-lasting in spots that don't get wet (like inner door seals maybe) or perhaps in climates where it doesn't rain? I'm wondering how people use these products.


If you wanted really long-lasting de-squeaking action, get some PFPE grease or oil (DuPont krytox) and smear just a tiny film over your squeaking rubber. It's good stuff - just very expensive and doesn't have the UV inhibitors like gummi phlege and 303. At least it will *not* wash off with water like 303 and gummi phlege seem to.