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 - Removal, Overhaul & Installation) Section 28 (Engine Performance Wiring Diagrams) Section 29 (Brakes - Repair) Section 30 (Electrical Component Locator) Section 31 (Electrical Component Locator) Section 32 (Electrical Component Locator - E36) Section 33 (Electrical Component Locator) Section 34 (Electrical Component Locator) Section 35 (Specifications & Drive Belt Routing) Section 36 (Steering Column - E36) Section 37 (Air Bag Restraint Systems) Section 38 (Electrical Component Locator) Section 39 (Electrical Component Locator) Section 40 (Electrical Component Locator) Section 41 (Electrical Component Locator) Section 42 (Electrical Component Locator) Section 43 (A/C-Heater System) Section 44 (Anti-Lock/Traction Control) Section 45 (Electrical Component Locator) Section 46 (Front/Rear Drive Axle - Repair (2WD & 4WD)) Section 47 (Axle Shafts - 5 Series) Section 48 (Suspension - Front) Section 49 (Disc - Z8) Section 50 (Front Axle - Repair - E46) Section 51 (Engine Controls - Basic Diagnostic Procedures) Section 52 (Diagnostic Trouble Codes With Test Charts) Section 53 (Engine Controls - Trouble Shooting - No Codes) Section 54 (Brakes - Repair) Section 55 (Axle Shafts - X5) Section 56 (Anti-Lock Brakes/Traction Control System - X5) Section 57 (Front Differentials) Section 58 (Air Bag Restraint Systems) Section 59 (Air Bag Restraint Systems) Section 60 (Air Bag Restraint Systems) Section 61 (Suspension - Front - Repair) Section 62 (Suspension - Front) Section 63 (Air Bag Restraint Systems) Section 64 (Air Bag Restraint Systems) Section 65 (Air Bag - Trouble Codes) Section 66 (Rear Suspension - Repair - E46) Section 67 (Engine Controls - Service & Adjustment Specifications) Section 68 (Engine Controls - On-Vehicle Adjustments) Section 69 (Engine Controls - Basic Diagnostic Procedures) Section 70 (Diagnostic Trouble Codes With Test Charts) Section 71 (Engine Controls - Trouble Shooting - No Codes) Section 72 (Engine Controls - System & Component Testing) Section 73 (Engine Controls - Pin Voltage Charts) Section 74 (Steering Column - Repair) Section 75 (Steering Column - Repair) Section 76 (Steering Column) Section 77 (Steering Column) Section 78 (Power Rack & Pinion - Repair) Section 79 (Power Rack & Pinion) Section 80 (Power Steering System - Repair) Section 81 (Steering - Repair) Section 82 (Air Bag Deactivation Procedures) Section 83 (Cabin Air Filter) Section 84 (Cabin Air Filter) Section 85 (Cabin Air Filter) Section 86 (Cabin Air Filter - E46) Section 87 (Electrical Component Locator) Section 88 (Electrical Component Locator) Section 89 (Diagnostic Trouble Codes With Test Charts) Section 90 (Diagnostic Trouble Codes With Test Charts) Section 91 (Diagnostic Trouble Codes With Test Charts (6-Cylinder)) Section 92 (Diagnostic Trouble Codes With Test Charts (V8 & V12)) Section 93 (Computer Relearn Procedures) Section 94 (Diagnostic Trouble Codes With Test Charts) Section 95 (Air Bag Restraint Systems) Section 96 (Air Bag Restraint Systems) Section 97 (Air Bag Restraint Systems) Section 98 (Power Convertible Top - Z8) Section 99 (Specifications & Procedures) Section 100 (Axle Shafts (Front & Rear) - Repair) Section 101 (Cooling Fans) Section 102 (Generators & Regulators) Section 103 (Brakes - Repair) Section 104 (Brakes - Repair (E46)) Section 105 (Starter - Repair (2WD)) Section 106 (Starter - Repair) Section 107 (Starters) Section 108 (Cooling Fans - Repair (E46)) Section 109 (Starter) Section 110 (Specifications & Drive Belt Routing) Section 111 (Cabin Air Filter) Section 112 (Manual Transmission - Servicing) Section 113 (Removal & Installation - (A5S 440Z)) Section 114 (Removal & Installation - (A5S 325Z)) Section 115 (Transmission - Overview) Section 116 (Removal & Installation (A5S 325Z)) Section 117 (Automatic Transmission - Removal & Installation - X5 (A5S 440Z)) Section 118 (Automatic Transmission - Removal & Installation - X5 (6HP26Z)) Section 119 (Removal & Installation - (S5D 310Z/S5D 320Z)) Section 120 (Removal & Installation (S5D 200G/S5D 250G/M52TU/M54)) Section 121 (Air Bag Restraint Systems) Section 122 (Air Bag Restraint Systems) Section 123 (Removal & Installation (S6S 420G)) Section 124 (Removal & Installation - X5 (S5D 280Z)) Section 125 (Removal & Installation - M3 (S6S 420G SMG)) Section 126 (REMOVAL & INSTALLATION - 330i, xi & Ci (GS6 37BZ)) Section 127 (Removal & Installation (A5S 3690R/390R)) Section 128 (On-Vehicle Servicing - GA6HP26Z) Section 129 (On-Vehicle Servicing - (S5D 200G/250G)) Section 130 (On-Vehicle Servicing - (S5D 260Z/310Z & S5D 320Z)) Section 131 (On-Vehicle Servicing - (S5D 200G/250G & GS6S37BZ SMG)) Section 132 (On-Vehicle Servicing - (S5DZ & GS6X37BZ)) Section 133 (Transfer Case - Removal & Installation) Section 134 (Transfer Case Servicing) Section 135 (Transfer Case - Overhaul) Section 136 (Gear Shift Mechanism - Repair) Section 137 (Gear Shift Mechanisms) Section 138 (Electrical Component Locator) Section 139 (Electrical Component Locator) Section 140 (Electrical Component Locator) Section 141 (Electrical Component Locator) Section 142 (Maintenance And General Information - Repair Instructions) Section 143 (Engine - Repair Instructions - X5 (4.4L)) Section 144 (Engine Electrical System - Repair Instructions - X5 (4.4L)) Section 145 (Fuel System - Repair Instructions - X5 (4.4L)) Section 146 (Cooling System - Repair Instructions - X5 (4.4L)) Section 147 (Exhaust System - Repair Instructions - X5 (4.4L)) Section 148 (Propeller Shaft - Repair Instructions - X5 (4.4L)) Section 149 (Pedals - Repair - X5 (4.4L)) Section 150 (Body Equipment - Repair Instructions - X5 (4.4L)) Section 151 (Seats - Repair Instructions - 4.4L) Section 152 (Slide/Tilt Roof - Repair Instructions - X5 (4.4L)) Section 153 (General Electrical System - Repair Instructions - X5 (4.4L)) Section 154 (Instruments - Repair Instructions - X5 (4.4L)) Section 155 (Lights - Repair Instructions - X5 (4.4L)) Section 156 (Heating And Air Conditioning - Repair - X5 (4.4L)) Section 157 (Audio, Navigation And Anti-Theft - Repair Instructions - X5 (4.4L))
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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.
