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 (Abs/Traction Control - Repair (E46)) Section 3 (Specifications & Procedures) Section 4 (Differentials & Axle Shafts) Section 5 (Servicing - M/T) Section 6 (Removal & Installation - A/T (5HP18 & 5HP30)) Section 7 (Wiring Diagrams - 4-CYL) Section 8 (Engine Controls - Specifications) Section 9 (Engine Controls - Adjustments - Except V12) Section 10 (Engine Controls - Service & Adjustment Specifications) Section 11 (Engine Controls - On-Vehicle Adjustments) Section 12 (Engine Controls - Basic Diagnostic Procedures) Section 13 (Engine Controls - Trouble Shooting - No Codes) Section 14 (Engine Controls - System & Component Testing) Section 15 (Engine Controls - Removal, Overhaul & Installation) Section 16 (Engine Performance Wiring Diagrams) Section 17 (Air Bag Restraint System) Section 18 (Electrical Component Locator) Section 19 (Air Bag Restraint Systems) Section 20 (A/C-Heater System) 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) Section 27 (System Wiring Diagrams) Section 28 (System Wiring Diagrams) Section 29 (System Wiring Diagrams) Section 30 (System Wiring Diagrams - 2D Convertible) Section 31 (System Wiring Diagrams (4 Door )) 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) Section 37 (System Wiring Diagrams) Section 38 (System Wiring Diagrams) Section 39 (System Wiring Diagrams Sedan) Section 40 (System Wiring Diagrams - 2D Convertible) Section 41 (System Wiring Diagrams) Section 42 (System Wiring Diagrams) Section 43 (System Wiring Diagrams - 2D Convertible) Section 44 (System Wiring Diagrams) Section 45 (System Wiring Diagrams) Section 46 (System Wiring Diagrams Convertible) Section 47 (System Wiring Diagrams - 2D Convertible) Section 48 (System Wiring Diagrams) Section 49 (System Wiring Diagrams) Section 50 (System Wiring Diagrams) Section 51 (System Wiring Diagrams) Section 52 (System Wiring Diagrams - 2D Convertible) Section 53 (System Wiring Diagrams - 2D Convertible) Section 54 (System Wiring Diagrams) Section 55 (System Wiring Diagrams - 2D Convertible) Section 56 (System Wiring Diagrams - 2D Convertible) 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) 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 - 2D Convertible) Section 70 (System Wiring Diagrams) Section 71 (System Wiring Diagrams) Section 72 (System Wiring Diagrams) Section 73 (System Wiring Diagrams) Section 74 (Computer Relearn Procedures) Section 75 (Air Bag Restraint System) Section 76 (Computer Relearn Procedures) Section 77 (Electrical Component Locator) Section 78 (Front Axle - Repair - E46) Section 79 (System Wiring Diagrams) Section 80 (Computer Relearn Procedures - Import) Section 81 (Air Bag Restraint Systems) Section 82 (Air Bag Restraint Systems) Section 83 (Rear Suspension - Repair - E46) Section 84 (Engine Controls - Service & Adjustment Specifications) Section 85 (Engine Controls - On-Vehicle Adjustments) Section 86 (Engine Controls - Basic Diagnostic Procedures) Section 87 (Diagnostic Trouble Codes With Test Charts) Section 88 (Engine Controls - Trouble Shooting - No Codes) Section 89 (Engine Controls - System & Component Testing) Section 90 (Engine Controls - Pin Voltage Charts) Section 91 (Steering Column - Repair) Section 92 (Power Steering System - Repair) Section 93 (Air Bag Deactivation Procedures) Section 94 (Cabin Air Filter - E46) Section 95 (Electrical Component Locator) Section 96 (Diagnostic Trouble Codes With Test Charts) Section 97 (Diagnostic Trouble Codes With Test Charts) Section 98 (Computer Relearn Procedures) Section 99 (Diagnostic Trouble Codes With Test Charts) Section 100 (Air Bag Restraint Systems) Section 101 (Brakes - Repair (E46)) Section 102 (Starter - Repair (2WD)) Section 103 (Starter - Repair) Section 104 (Cooling Fans - Repair (E46)) Section 105 (Manual Transmission - Servicing) Section 106 (Standard/Automatic Transmission - Overview) Section 107 (Transmission - Overview) Section 108 (Removal & Installation (A5S 325Z)) Section 109 (Removal & Installation (S5D 200G/S5D 250G/M52TU/M54)) Section 110 (Air Bag Restraint Systems) Section 111 (Removal & Installation - M3 (S6S 420G SMG)) Section 112 (REMOVAL & INSTALLATION - 330i, xi & Ci (GS6 37BZ)) Section 113 (On-Vehicle Servicing - (A5S 360R/390R)) Section 114 (Removal & Installation (A5S 3690R/390R)) Section 115 (On-Vehicle Servicing - (S5D 200G/250G & GS6S37BZ SMG)) Section 116 (On-Vehicle Servicing - (S5DZ & GS6X37BZ)) Section 117 (Gear Shift Mechanism - Repair) Section 118 (Electrical Component Locator) Section 119 (Maintenance And General Information - Repair Instructions) Section 120 (Engine - Repair (S54)) Section 121 (Engine Electrical System - Repair Instructions) Section 122 (Fuel System - Repair Instructions) Section 123 (Cooling System - Repair Instructions) Section 124 (Exhaust System - Repair Instructions) Section 125 (Clutch - Repair Instructions) Section 126 (Manual Transmission - Repair Instructions) Section 127 (Propeller Shaft - Repair Instructions) Section 128 (Wheel And Tires - Repair Instructions) Section 129 (Body Equipment - Repair Instructions) Section 130 (General Electrical System - Repair Instructions) Section 131 (Instruments - Repair Instructions) Section 132 (Engine - Technical Data) Section 133 (Engine Electrical System - Technical Data) Section 134 (Fuel System - Technical Data) Section 135 (Manual Transmission - Technical Data) Section 136 (Propeller Shaft - Technical Data) Section 137 (Wheel And Tires - Technical Data) Section 138 (Maintenance And General Information - Tightening Torques) Section 139 (Engine - Tightening Torques) Section 140 (Engine Electrical System - Tightening Torques) Section 141 (Fuel System - Tightening Torques) Section 142 (Cooling System - Tightening Torques) Section 143 (Clutch - Tightening Torques) Section 144 (Manual Transmission - Tightening Torques) Section 145 (Propeller Shaft - Tightening Torques) Section 146 (Wheel And Tires - Tightening Torques) Section 147 (Body Equipment - Tightening Torques) Section 148 (General Electrical System - Tightening Torques) Section 149 (Cooling System - Technical Data) Section 150 (Maintenance And General Information - Special Tools) Section 151 (Engine- Special Tools - M-Coupe & Z3 (E36)) Section 152 (Clutch - Special Tools - M-Coupe/Roadster & Z3 (E36)) Section 153 (MAINTENANCE - REPAIR INSTRUCTIONS - 330i, 330Ci, 330xi (M54/E46)) Section 154 (Engine - Repair (6-CYL)) Section 155 (Engine Electrical System - Repair) Section 156 (Fuel System - Repair Instructions) Section 157 (Fuel Supply System - Repair) Section 158 (Cooling System - Repair Instructions) Section 159 (Exhaust System - Repair) Section 160 (Engine And Transmission Mounting - Repair) Section 161 (Propeller Shaft - Repair - E46) Section 162 (Body Equipment - Repair) Section 163 (Seats -
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.