C4 jacking instructions
Drifting
Joined: Feb 2017
Posts: 1,274
Likes: 399
From: Tacoma WA
2024 C4 of the Year Finalist - Unmodified
There are arrows on the frame rail close to both the front and back wheels where the steel frame and body panel allow the “u” in the jack to lift against the steel rail. Too often you will see damage to either the floor pan or body panel because the jack was placed incorrectly. If you reach between that six inch space where the arrows are you will be able to feel the steel rail. That is what lifts the car.
Instructor
Joined: Jul 2020
Posts: 227
Likes: 43
From: New Jersey
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
You can jack at ANY point along the pinch welded seem, from the front of the rocker rail, to right in front of the rear wheel, and it will all work, "fine". In fact, if you jack about 6" rearward of the side view mirror, the front and rear wheels will lift about evenly, making it easy to install two jack stands at the jacking points at the same height, and at the same time....then go around to the other side, do the same there. You can have the car safely on 4 stands in about....4 minutes.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
No, that is totally typical. The "lip" on the fiberglass rocker trim/cover is only there to hide the pinch weld/seam. It's not meant to be jacked on in anyway and contributes nothing to the strength of the car or the pinch weld. The pinch weld is super strong and handles the loads of jacking the car with ease.
THUS...when jacking, you simply want to make sure that your jack pad isn't applying enough force to the fiberglass rocker trim as to crack it. In theory, the trim should be just a few mm higher than the bottom of the pinch weld so the jack pad won't touch the trim, but in reality, cars vary....'80's GM QC here.
THUS...when jacking, you simply want to make sure that your jack pad isn't applying enough force to the fiberglass rocker trim as to crack it. In theory, the trim should be just a few mm higher than the bottom of the pinch weld so the jack pad won't touch the trim, but in reality, cars vary....'80's GM QC here.
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Burning Brakes
Joined: May 2002
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From: Sierra Foothills, State of Jefferson