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 (Engine Controls - Service & Adjustment Specifications) Section 2 (Engine Controls - On-Vehicle Adjustments) Section 3 (Engine Controls - Basic Diagnostic Procedures - Except V12) Section 4 (Diagnostic Trouble Codes With Test Charts) Section 5 (Engine Controls - Trouble Shooting - No Codes) Section 6 (Engine Controls - System & Component Testing) Section 7 (Engine Controls - Removal, Overhaul & Installation - 1 Of 2) Section 8 (Engine Performance Wiring Diagrams) Section 9 (Abs/Traction Control - Repair (E46)) Section 10 (Specifications & Procedures) Section 11 (Differentials & Axle Shafts) Section 12 (Clutches - 5 Series (E39)) Section 13 (Servicing - M/T) Section 14 (Engine Controls - Specifications) Section 15 (Engine Controls - Adjustments - Except V12) Section 16 (Engine Performance Wiring Diagrams) Section 17 (Diagnostic Trouble Codes With Test Charts) Section 18 (Engine Controls - Basic Testing) Section 19 (Engine Controls - Tests W/O Codes) Section 20 (Engine Controls - System/Component Tests) Section 21 (Engine Controls - Remove/Install/Overhaul) Section 22 (Engine Controls - Service & Adjustment Specifications) Section 23 (Engine Controls - On-Vehicle Adjustments) Section 24 (Engine Controls - Basic Diagnostic Procedures) Section 25 (Engine Controls - Trouble Shooting - No Codes) Section 26 (Engine Controls - System & Component Testing) Section 27 (Engine Controls - Pin Voltage Charts) Section 28 (Engine Controls - Removal, Overhaul & Installation) Section 29 (Engine Performance Wiring Diagrams) Section 30 (Brakes - Repair) Section 31 (Electrical Component Locator) Section 32 (Electrical Component Locator) Section 33 (Electrical Component Locator - E36) Section 34 (Electrical Component Locator) Section 35 (Electrical Component Locator) Section 36 (Specifications & Drive Belt Routing) Section 37 (Specifications & Drive Belt Routing) Section 38 (Steering Column - E36) Section 39 (Air Bag/SRS Component Inspection & Replacement Tables - EUROPEAN) Section 40 (Air Bag Restraint Systems) Section 41 (Electrical Component Locator) Section 42 (Electrical Component Locator) Section 43 (Electrical Component Locator) Section 44 (Electrical Component Locator) Section 45 (Electrical Component Locator) Section 46 (A/C-Heater System) Section 47 (Anti-Lock/Traction Control) Section 48 (Electrical Component Locator) Section 49 (Front/Rear Drive Axle - Repair (2WD & 4WD)) Section 50 (Drive Shafts & Universal Joints) Section 51 (Front Suspension - Repair - E36) Section 52 (Rear Suspension) Section 53 (Axle Shafts - 5 Series) Section 54 (Suspension - Front) Section 55 (Disc - Z8) Section 56 (Front Axle - Repair - E46) Section 57 (Engine Controls - Basic Diagnostic Procedures) Section 58 (Diagnostic Trouble Codes With Test Charts) Section 59 (Engine Controls - Trouble Shooting - No Codes) Section 60 (Brakes - Repair) Section 61 (Axle Shafts - X5) Section 62 (ANTI-LOCK BRAKES/TRACTION CONTROL SYSTEM - 745i & 745Li) Section 63 (Anti-Lock Brakes/Traction Control System - X5) Section 64 (Front Differentials) Section 65 (Air Bag Restraint Systems) Section 66 (Air Bag Restraint Systems) Section 67 (Air Bag Restraint Systems) Section 68 (Suspension - Front - Repair) Section 69 (Suspension - Front) Section 70 (Suspension - Front) Section 71 (Air Bag Restraint Systems) Section 72 (Air Bag Restraint Systems) Section 73 (Air Bag Restraint Systems) Section 74 (Electronic Suspension) Section 75 (Air Bag - Trouble Codes) Section 76 (Rear Suspension - Repair - E46) Section 77 (Engine Controls - Service & Adjustment Specifications) Section 78 (Engine Controls - On-Vehicle Adjustments) Section 79 (Engine Controls - Basic Diagnostic Procedures) Section 80 (Diagnostic Trouble Codes With Test Charts) Section 81 (Engine Controls - Trouble Shooting - No Codes) Section 82 (Engine Controls - System & Component Testing) Section 83 (Engine Controls - Pin Voltage Charts) Section 84 (Steering Column - Repair) Section 85 (Steering Column) Section 86 (Steering Column - Repair) Section 87 (Steering Column) Section 88 (Steering Column) Section 89 (Power Rack & Pinion - E36) Section 90 (Power Rack & Pinion - Repair) Section 91 (Power Rack & Pinion) Section 92 (Power Steering System - Repair) Section 93 (Steering - Repair) Section 94 (Power Rack & Pinion) Section 95 (Suspension - Rear) Section 96 (Air Bag Deactivation Procedures) Section 97 (Cabin Air Filter) Section 98 (Cabin Air Filter) Section 99 (Cabin Air Filter) Section 100 (Cabin Air Filter - E46) Section 101 (Electrical Component Locator) Section 102 (Electrical Component Locator) Section 103 (Diagnostic Trouble Codes With Test Charts) Section 104 (Diagnostic Trouble Codes With Test Charts) Section 105 (Diagnostic Trouble Codes With Test Charts (6-Cylinder)) Section 106 (Diagnostic Trouble Codes With Test Charts (V8 & V12)) Section 107 (Computer Relearn Procedures) Section 108 (Diagnostic Trouble Codes With Test Charts) Section 109 (Air Bag Restraint Systems) Section 110 (Air Bag Restraint Systems) Section 111 (Air Bag Restraint Systems) Section 112 (Air Bag Restraint Systems) Section 113 (Air Bag Restraint Systems) Section 114 (Power Convertible Top - Z8) Section 115 (Specifications & Procedures) Section 116 (Specifications & Procedures) Section 117 (Specifications & Procedures) Section 118 (Axle Shafts (Front & Rear) - Repair) Section 119 (AXLE SHAFTS - 645Ci) Section 120 (Axle Shafts - Repair) Section 121 (ELECTRIC COOLING FANS - 525i, 530i & 545i) Section 122 (Cooling Fans) Section 123 (Generators & Regulators) Section 124 (Generators & Regulators) Section 125 (Generators & Regulators) Section 126 (DISC - 745i, 745Li, 760i & 760Li) Section 127 (Brakes - Repair) Section 128 (Brakes - Repair (E46)) Section 129 (DISC - 525i, 530i & 545i) Section 130 (Brakes - Repair) Section 131 (Starter - Repair (2WD)) Section 132 (Cooling Fans) Section 133 (Starter - Repair) Section 134 (Starters) Section 135 (Starters) Section 136 (Cooling Fans - Repair (E46)) Section 137 (Starter) Section 138 (Fuses & Circuit Breakers - E63/E64) Section 139 (Suspension - Rear) Section 140 (Suspension - Front) Section 141 (Specifications & Procedures) Section 142 (Specifications & Drive Belt Routing) Section 143 (Specifications & Drive Belt Routing) Section 144 (Suspension - Rear) Section 145 (Cabin Air Filter) Section 146 (Cabin Air Filter) Section 147 (Servicing - A/T) Section 148 (Suspension - Front) Section 149 (Removal & Installation (A5S 360R/390R)) Section 150 (Removal & Installation - (A5S 440Z)) Section 151 (Removal & Installation - (A5S 325Z)) Section 152 (Transmission - Overview) Section 153 (Removal & Installation (A5S 325Z)) Section 154 (Automatic Transmission - Removal & Installation - X5 (A5S 440Z)) Section 155 (Automatic Transmission - Removal & Installation - A5S360R) Section 156 (Automatic Transmission - Removal & Installation - X5 (6HP26Z)) Section 157 (REMOVAL & INSTALLATION - 545i & 645i (6HP26Z/N62)) Section 158 (Automatic Transmission - Removal & Installation) Section 159 (Manual Transmission - Removal & Installation (A5S 360R/390R)) Section 160 (Removal & Installation - (S5D 310Z/S5D 320Z)) Section 161 (Propeller Shaft - Repair) Section 162 (Removal & Installation (S5D 200G/S5D 250G/M52TU/M54)) Section 163 (Air Bag Restraint Systems) Section 164 (Air Bag Restraint Systems) Section 165 (Air Bag Restraint Systems) Section 166 (Air Bag Restraint Systems) Section 167 (Air Bag Restraint Systems) Section 168 (Removal & Installation
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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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