Mercedes-Benz SLK lug nut torque

The Mercedes-Benz SLK takes 96 lb-ft (130 N·m) on its wheel bolts; the manuals for cars built 2011–2019 all say the same. Tighten them in a star pattern with a torque wrench.

Sources checked

Wheel bolt torque

96lb-ft130N·m

04080120050100150ft-lbN·m
As printed
“The specified tightening torque is 96 lb-ft (130 Nm).”
Source
SLK Roadster Operator's Manual (R172, built from January 2019): Lowering the vehicle, PDF page 296

Mercedes-Benz SLK lug nut torque by build date

Built fromTorqueManual page
January 201996 lb-ft (130 N·m)Lowering the vehicle, PDF page 296
August 201896 lb-ft (130 N·m)Lowering the vehicle, PDF page 295
January 201896 lb-ft (130 N·m)Lowering the vehicle, PDF page 295
August 201796 lb-ft (130 N·m)Lowering the vehicle, PDF page 287
March 201796 lb-ft (130 N·m)Lowering the vehicle, PDF page 281
September 201696 lb-ft (130 N·m)Lowering the vehicle, PDF page 279
November 201596 lb-ft (130 N·m)Lowering the vehicle, PDF page 281
March 2015130 N·m (96 lb-ft converted)Lowering the vehicle, PDF page 331
September 201496 lb-ft (130 N·m)Lowering the vehicle, PDF page 341
201496 lb-ft (130 N·m)Changing a wheel, PDF page 340
201396 lb-ft (130 N·m)Changing a wheel, PDF page 336
201296 lb-ft (130 N·m)Lowering the vehicle, PDF page 336
201196 lb-ft (130 N·m)Lowering the vehicle, PDF page 283

A unit marked converted isn’t printed in that manual, or is printed wrongly: it’s worked out from one the manual prints. Mercedes-Benz lists its owner’s manuals by the date the car was built, not by model year, so they’re listed that way here: each applies to cars built from the date shown. The month and year yours was built are on the label in the driver’s door frame. Read on Mercedes-Benz’s own site on October 23, 2026.

How to tighten them

  1. Clean any dirt or rust off the bolts and the wheel’s mounting face. Don’t oil them unless the manual says to.
  2. Thread every bolt in by hand until it seats against the wheel.
  3. Lower the vehicle so the tire takes its weight, and set a torque wrench to 96 lb-ft (130 N·m).
  4. Tighten the bolts in a star pattern, going around two or three times, until the wrench clicks on every bolt.
  5. Check the torque again after a short drive if your manual says to.

What the Mercedes-Benz manual adds

  • Tighten the wheel bolts evenly in a crosswise pattern in the sequence indicated.
  • Have the tightening torque immediately checked at a qualified specialist workshop after a wheel is changed.
  • Never oil or grease wheel bolts.

More detail, including how many passes to make: how to torque lug nuts. Setting and using the wrench: how to use a click torque wrench. Wheels held on by bolts, and how they’re fitted: lug nuts vs wheel bolts.

Other Mercedes-Benz models

Questions

What is the lug nut torque on a Mercedes-Benz SLK?

96 lb-ft (130 N·m), from Mercedes-Benz’s owner’s manuals (built 2011–2019).

Can I use an impact wrench?

Not to finish. An impact wrench can’t set a torque and easily overshoots it, which stretches studs. Run the nuts down by hand or lightly, then finish with a torque wrench in a star pattern.

Should I oil the wheel bolts?

Not unless the manual says so. Torque values assume clean, dry threads; oil lets the same torque stretch the bolt further. Some manuals, Kia’s and Mazda’s among them, say to keep oil and grease off wheel nuts and bolts altogether.