I bought a jack from harbor freight about 10 years ago. I don't remember the tonnage, it was just under $100 total. It's lifted every Mercedes I have ever owned.

At best your entire car is 5k lbs. that's about 2.5 tons total. Worst case scenario you are jacking up an entire half of your car, about 2500 lbs. which is a bit over a ton.

Even if the jack was rated at 2 tons, it's still more than you need.

I trust my harbor freight jack. It's been dead nuts reliable. Most importantly, a car jack is for jacking up your car ONLY. If you plan on crawling under your car you should be worried about finding a good set of jack stands.

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2