BMW - SLS, (self leveling suspension), Pump Leak Repair Service, for e23, e24, e28, and others. Repair is $160.00 + RS + Ins, for the trunk mounted unit. Or DIY LEAK repair Kit $50.00 Cont USA, with mail $70.00 International, with mail The SLS Tutorial begins on page 24 My Info: Jay Stratton, 2514 North Tustin Ave. Unit E, Santa Ana, CA. 92705. my e-mail, jaycstratton9@gmail.com scroll down