Just had my service B done and it was about $500 with a 15% dealer coupon.
Just cost me $564 for 2008 GL 450
The 2008 Mercedes-Benz G-Class's engine produces 336 ft-lbs. @ 2800 rpm.
The 2008 Mercedes-Benz SLK-Class's engine produces 221 ft-lbs. @ 2700 rpm.
The 2008 Mercedes-Benz CLS-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2008 Mercedes-Benz GL-Class's engine produces 398 ft-lbs. @ 1600 rpm.
The 2008 Mercedes-Benz E-Class's engine produces 258 ft-lbs. @ 2400 rpm.
The 2008 Mercedes-Benz S-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2008 Mercedes-Benz SL-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2008 Mercedes-Benz CL-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2008 Mercedes-Benz C-Class's engine produces 221 ft-lbs. @ 2700 rpm.
The 2008 Mercedes-Benz M-Class's engine produces 258 ft-lbs. @ 2400 rpm.
The pricing depends on the model.