Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
External Pages
's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle. Different car Section 1 (Computer Relearn Procedures) Section 2 (Starter) Section 3 (Abs/Traction Control - Repair (E46)) Section 4 (Differentials & Axle Shafts) Section 5 (Servicing - M/T) Section 6 (Engine Controls - Service & Adjustment Specifications) Section 7 (Engine Controls - On-Vehicle Adjustments) Section 8 (Engine Controls - Basic Diagnostic Procedures) Section 9 (Engine Controls - Trouble Shooting - No Codes) Section 10 (Engine Controls - System & Component Testing) Section 11 (Engine Controls - Removal, Overhaul & Installation) Section 12 (Engine Performance Wiring Diagrams) Section 13 (Electrical Component Locator) Section 14 (Air Bag Restraint Systems) Section 15 (Electrical Component Locator) Section 16 (A/C-Heater System) Section 17 (System Wiring Diagrams) Section 18 (System Wiring Diagrams) Section 19 (System Wiring Diagrams) Section 20 (System Wiring Diagrams) Section 21 (System Wiring Diagrams) Section 22 (System Wiring Diagrams) Section 23 (System Wiring Diagrams) Section 24 (System Wiring Diagrams) Section 25 (System Wiring Diagrams) Section 26 (System Wiring Diagrams - 2D Convertible) Section 27 (System Wiring Diagrams (4 Door )) Section 28 (System Wiring Diagrams) Section 29 (System Wiring Diagrams) Section 30 (System Wiring Diagrams) Section 31 (System Wiring Diagrams) Section 32 (System Wiring Diagrams) Section 33 (System Wiring Diagrams) Section 34 (System Wiring Diagrams) Section 35 (System Wiring Diagrams) Section 36 (System Wiring Diagrams Sedan) Section 37 (System Wiring Diagrams - 2D Convertible) Section 38 (System Wiring Diagrams) Section 39 (System Wiring Diagrams) Section 40 (System Wiring Diagrams - 2D Convertible) Section 41 (System Wiring Diagrams) Section 42 (System Wiring Diagrams Convertible) Section 43 (System Wiring Diagrams - 2D Convertible) Section 44 (System Wiring Diagrams) Section 45 (System Wiring Diagrams) Section 46 (System Wiring Diagrams) Section 47 (System Wiring Diagrams) Section 48 (System Wiring Diagrams - 2D Convertible) Section 49 (System Wiring Diagrams - 2D Convertible) Section 50 (System Wiring Diagrams) Section 51 (System Wiring Diagrams - 2D Convertible) Section 52 (System Wiring Diagrams - 2D Convertible) Section 53 (System Wiring Diagrams) Section 54 (System Wiring Diagrams) Section 55 (System Wiring Diagrams) Section 56 (System Wiring Diagrams) Section 57 (System Wiring Diagrams) Section 58 (System Wiring Diagrams) Section 59 (System Wiring Diagrams) Section 60 (System Wiring Diagrams) Section 61 (System Wiring Diagrams - 2D Convertible) Section 62 (System Wiring Diagrams) Section 63 (System Wiring Diagrams) Section 64 (System Wiring Diagrams) Section 65 (System Wiring Diagrams - 2D Convertible) Section 66 (System Wiring Diagrams) Section 67 (System Wiring Diagrams) Section 68 (System Wiring Diagrams) Section 69 (System Wiring Diagrams) Section 70 (Computer Relearn Procedures) Section 71 (Computer Relearn Procedures) Section 72 (Front Axle - Repair - E46) Section 73 (System Wiring Diagrams) Section 74 (Computer Relearn Procedures - Import) Section 75 (Air Bag Restraint Systems) Section 76 (Air Bag Restraint Systems) Section 77 (Rear Suspension - Repair - E46) Section 78 (Engine Controls - Service & Adjustment Specifications) Section 79 (Engine Controls - On-Vehicle Adjustments) Section 80 (Engine Controls - Basic Diagnostic Procedures) Section 81 (Diagnostic Trouble Codes With Test Charts) Section 82 (Engine Controls - Trouble Shooting - No Codes) Section 83 (Engine Controls - System & Component Testing) Section 84 (Engine Controls - Pin Voltage Charts) Section 85 (Steering Column - Repair) Section 86 (Power Steering System - Repair) Section 87 (Air Bag Deactivation Procedures) Section 88 (Cabin Air Filter - E46) Section 89 (Diagnostic Trouble Codes With Test Charts) Section 90 (Diagnostic Trouble Codes With Test Charts) Section 91 (Computer Relearn Procedures) Section 92 (Diagnostic Trouble Codes With Test Charts) Section 93 (Air Bag Restraint Systems) Section 94 (Brakes - Repair (E46)) Section 95 (Starter - Repair (2WD)) Section 96 (Starter - Repair) Section 97 (Cooling Fans - Repair (E46)) Section 98 (Manual Transmission - Servicing) Section 99 (Standard/Automatic Transmission - Overview) Section 100 (Transmission - Overview) Section 101 (Removal & Installation (A5S 325Z)) Section 102 (Removal & Installation (S5D 200G/S5D 250G/M52TU/M54)) Section 103 (Air Bag Restraint Systems) Section 104 (Removal & Installation - M3 (S6S 420G SMG)) Section 105 (REMOVAL & INSTALLATION - 330i, xi & Ci (GS6 37BZ)) Section 106 (On-Vehicle Servicing - (A5S 360R/390R)) Section 107 (Removal & Installation (A5S 3690R/390R)) Section 108 (On-Vehicle Servicing - (S5D 200G/250G & GS6S37BZ SMG)) Section 109 (On-Vehicle Servicing - (S5DZ & GS6X37BZ)) Section 110 (Gear Shift Mechanism - Repair) Section 111 (Electrical Component Locator) Section 112 (Electrical Component Locator) Section 113 (Maintenance And General Information - Repair Instructions) Section 114 (Engine - Repair (S54)) Section 115 (Engine Electrical System - Repair Instructions) Section 116 (Fuel System - Repair Instructions) Section 117 (Cooling System - Repair Instructions) Section 118 (Exhaust System - Repair Instructions) Section 119 (Clutch - Repair Instructions) Section 120 (Manual Transmission - Repair Instructions) Section 121 (Propeller Shaft - Repair Instructions) Section 122 (Wheel And Tires - Repair Instructions) Section 123 (Body Equipment - Repair Instructions) Section 124 (General Electrical System - Repair Instructions) Section 125 (Instruments - Repair Instructions) Section 126 (Engine - Technical Data) Section 127 (Engine Electrical System - Technical Data) Section 128 (Fuel System - Technical Data) Section 129 (Manual Transmission - Technical Data) Section 130 (Propeller Shaft - Technical Data) Section 131 (Wheel And Tires - Technical Data) Section 132 (Maintenance And General Information - Tightening Torques) Section 133 (Engine - Tightening Torques) Section 134 (Engine Electrical System - Tightening Torques) Section 135 (Fuel System - Tightening Torques) Section 136 (Cooling System - Tightening Torques) Section 137 (Clutch - Tightening Torques) Section 138 (Manual Transmission - Tightening Torques) Section 139 (Propeller Shaft - Tightening Torques) Section 140 (Wheel And Tires - Tightening Torques) Section 141 (Body Equipment - Tightening Torques) Section 142 (General Electrical System - Tightening Torques) Section 143 (Cooling System - Technical Data) Section 144 (Maintenance And General Information - Special Tools) Section 145 (Engine- Special Tools - M-Coupe & Z3 (E36)) Section 146 (Clutch - Special Tools - M-Coupe/Roadster & Z3 (E36)) Section 147 (MAINTENANCE - REPAIR INSTRUCTIONS - 330i, 330Ci, 330xi (M54/E46)) Section 148 (Engine - Repair (6-CYL)) Section 149 (Engine Electrical System - Repair) Section 150 (Fuel System - Repair Instructions) Section 151 (Fuel Supply System - Repair) Section 152 (Cooling System - Repair Instructions) Section 153 (Exhaust System - Repair) Section 154 (Engine And Transmission Mounting - Repair) Section 155 (Propeller Shaft - Repair - E46) Section 156 (Body Equipment - Repair) Section 157 (Seats - Repair) Section 158 (Slide/Tilt Roof - Repair) Section 159 (General Electrical System - Repair) Section 160 (Lights - Repair) Section 161 (Heating And Air Conditioning - Repair) Section 162 (Electrical Drives - Repair) Section 163 (Communication Systems - Repair) Section 164 (Propeller Shaft - Techni
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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