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Home >> Porsche >> 2015 >> Boxster GTS, Automatic DCT Trans >> Repair and Diagnosis >> Suspension >> Rear Suspension >> 4X - Chassis - General -- (981) BOXSTER/CAYMAN >> WM 4X00IN Tightening Torques For Front Axle (All Models) >> Technical Values

Technical Values

Location Description Type Basic value Tolerance 1 Tolerance 2
Front-axle cross member - No. 2- to body Longitudinal support -No. 1- not present on 981. Hexagon-head bolt, M12 x 1.5/always use new bolts following removal Initial tightening 90 Nm (67 ftlb.)    
Front-axle cross member - No. 2- to body Longitudinal support -No. 1- not present on 981. Hexagon-head bolt, M12 x 1.5/always use new bolts following removal Final tightening +90°    
Longitudinal support no. 1 not present on 981        
Front-axle cross member - No. 2- with longitudinal arm (diagonal arm) to outer front body -No. 5- Hexagon-head bolt, M12 x 1.5 x 105/always use new bolts when re-tightening Initial tightening 90 Nm (67 ftlb.)    
Front-axle cross member - No. 2- with longitudinal arm (diagonal arm) to outer front body -No. 5- Hexagon-head bolt, M12 x 1.5 x 105/always use new bolts when re-tightening Final tightening +180°    
Front-axle cross member - No. 2- to inner front body - No. 5- Hexagon-head bolt, M12 x 1.5/always use new bolts when re-tightening Initial tightening 90 Nm (67 ftlb.)    
Front-axle cross member - No. 2- to inner front body - No. 5- Hexagon-head bolt, M12 x 1.5/always use new bolts when re-tightening Final tightening +90°    
Stud to front body for lock nut -No. 6- Stud, M12 x 1.5 Tightening torque 30 Nm (22 ftlb.)    
Front-axle cross member - No. 2- to center front body -No. 6- Lock nut, M12 x 1.5/always use new nuts when re-tightening Initial tightening 90 Nm (67 ftlb.)    
Front-axle cross member - No. 2- to center front body -No. 6- Lock nut, M12 x 1.5/always use new nuts when re-tightening Final tightening +90°    
Steering gear to front-axle cross member Hexagon-head bolt, M10 x 60/always use new bolts following removal Tightening torque 70 Nm (52 ftlb.)    
Holder for coolant pipes to front-axle cross member Hexagon-head bolt, M6 Tightening torque 10 Nm (7.5 ftlb.)    
Holder for height sensor and coolant pipe to front-axle cross member Hexagon-head bolt M6 Tightening torque 10 Nm (7.5 ftlb.)    
Sub-frame No. 1 to front-axle cross member and body Hexagon nut/hexagon-head bolt, M10 Tightening torque 65 Nm (48 ftlb.)    
Coolant pipes to Sub-frame Hexagon-head bolt, M6 Tightening torque 10 Nm (7.5 ftlb.)    
Wishbone to front-axle cross member M12 x 1.5 x 90 Tightening torque 120 Nm (89 ftlb.)    
Wishbone connection to longitudinal arm (diagonal arm) M14 x 1.5/hexagon-head bolt and hexagon nut Tightening torque 160 Nm (118 ftlb.)    
Longitudinal arm (diagonal arm) with front-axle cross member to body Hexagon-head bolt, M12 x 1.5 x 105/always use new bolts following removal Initial tightening 90 Nm (67 ftlb.)    
Longitudinal arm (diagonal arm) with front-axle cross member to body Hexagon-head bolt, M12 x 1.5 x 105/always use new bolts following removal Final tightening +180°    
Wishbone to wheel carrier (ball joint) Lock nut, M12 x 1.5 Tightening torque 85 Nm (63 ftlb.)    
Wishbone to wheel carrier (GT4 only) Hexagon-head bolt, M12 x 1.5 x 90 Tightening torque 120 Nm (89 ftlb.)    
Tie rod to wheel carrier (ball joint) Lock nut, M12 x 1.5 Tightening torque 85 Nm (63 ftlb.)    
Level sensor to holder on wishbone Lock nut Tightening torque 10 Nm (7.5 ftlb.)    
Spring strut to wheel carrier M12 x 1.5 Tightening torque 85 Nm (63 ftlb.)    
Spring strut to wheel carrier, bottom (GT4 only) M8 x 35 Tightening torque 23 Nm (17 ftlb.)    
Spring-strut supporting mount to body Hexagon nut, M8 Tightening torque 33 Nm (24 ftlb.)    
Spring-strut supporting mount to piston rod Lock nut, M14 x 1.5 Tightening torque 70 Nm    
Sensor for body at front and rear Hexagon-head bolt M6/no. 3 (two front sensors, one sensor at rear) Tightening torque 10 Nm    
Brake cover plate to wheel carrier Screw, M6 Tightening torque 10 Nm (7.5 ftlb.)    
Brake disc to wheel hub M6 screw Tightening torque 10 Nm (7.5 ftlb.)    
Brake calliper to wheel carrier M12 x 1.5/always use new screws following removal Tightening torque 85 Nm (63 ftlb.)    
Speed sensor to wheel carrier Cheese head bolt, M6 x 16 Tightening torque 10 Nm (7.5 ftlb.)    
Brake hose bracket to wheel carrier M6 screw Tightening torque 10 Nm (7.5 ftlb.)    
Retainer plate for wheel bearing to wheel carrier Hexagon-head bolt, M8 Tightening torque 37 Nm (27 ftlb.)    
Wheel hub to wheel carrier (tension bolt) Lock nut, M22 x 1.5/always use new lock nuts following removal Tightening torque 460 Nm (340 ftlb.)    
Wheel bearing assembly with housing to wheel carrier (GT4 only): Step 1 Fit cheese head bolts (M12 x 1.25 x 45/use new bolts if re-tightened Tightening torque 80 Nm (59 ftlb.)    
Wheel bearing assembly with housing to wheel carrier (GT4 only): Step 2 Cheese head bolts, M12 x 1.25 x 45/use new bolts if re-tightened Torque angle 120 Grad    
Anti-roll bar clamp to front-axle cross member Hexagon-head bolt, M10 x 60 + hexagon nut Tightening torque 65 Nm    
Connecting link (suspension/stabilizer) to spring strut (shock-absorber pipe clamp) M12 x 1.5 thread Tightening torque 85 Nm    
Connecting link (suspension/stabilizer) to anti-roll bar Collar nut, M10 x 1.5/always use new collar nut following removal Initial tightening 40 Nm (30 ftlb.)    
Connecting link (suspension/stabilizer) to anti-roll bar Collar nut, M10 x 1.5/always use new collar nut following removal Final tightening +30°    
Wheel to wheel hub on front and rear axle, M14 x 1.5 Do not grease thread, shank and under the head (between screw head bearing surface and spherical cap ring) of the wheel bolts. Do not grease bearing surface of the spherical cap facing the wheel. If heavily soiled, clean bolts first with a lint-free cloth. Replace damaged wheel bolts (rework not permitted). Tightening torque 160 Nm (118 ftlb.)