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 (Differentials & Axle Shafts) Section 11 (Clutches - 5 Series (E39)) Section 12 (Removal & Installation - A/T (Except A4S 270R/310R)) 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 (Electrical Component Locator) Section 30 (Electrical Component Locator) Section 31 (Electrical Component Locator - E36) Section 32 (Electrical Component Locator) Section 33 (Electrical Component Locator) Section 34 (Specifications & Drive Belt Routing) Section 35 (Steering Column - E36) Section 36 (Air Bag Restraint Systems) Section 37 (Electrical Component Locator) Section 38 (Electrical Component Locator) Section 39 (Electrical Component Locator) Section 40 (Electrical Component Locator) Section 41 (Electrical Component Locator) Section 42 (A/C-Heater System) Section 43 (Electrical Component Locator) Section 44 (Front/Rear Drive Axle - Repair (2WD & 4WD)) Section 45 (Suspension - Front) Section 46 (Disc - Z8) Section 47 (Front Axle - Repair - E46) Section 48 (Brakes - Repair) Section 49 (Axle Shafts - X5) Section 50 (Anti-Lock Brakes/Traction Control System - X5) Section 51 (Front Differentials) Section 52 (Air Bag Restraint Systems) Section 53 (Air Bag Restraint Systems) Section 54 (Air Bag Restraint Systems) Section 55 (Suspension - Front) Section 56 (Air Bag Restraint Systems) Section 57 (Air Bag Restraint Systems) Section 58 (Rear Suspension - Repair - E46) Section 59 (Engine Controls - Service & Adjustment Specifications) Section 60 (Engine Controls - On-Vehicle Adjustments) Section 61 (Engine Controls - Basic Diagnostic Procedures) Section 62 (Diagnostic Trouble Codes With Test Charts) Section 63 (Engine Controls - Trouble Shooting - No Codes) Section 64 (Engine Controls - System & Component Testing) Section 65 (Engine Controls - Pin Voltage Charts) Section 66 (Steering Column - Repair) Section 67 (Steering Column) Section 68 (Steering Column) Section 69 (Power Rack & Pinion) Section 70 (Power Steering System - Repair) Section 71 (Steering - Repair) Section 72 (Air Bag Deactivation Procedures) Section 73 (Cabin Air Filter) Section 74 (Cabin Air Filter) Section 75 (Cabin Air Filter - E46) Section 76 (Electrical Component Locator) Section 77 (Electrical Component Locator) Section 78 (Diagnostic Trouble Codes With Test Charts) Section 79 (Diagnostic Trouble Codes With Test Charts) Section 80 (Diagnostic Trouble Codes With Test Charts (6-Cylinder)) Section 81 (Diagnostic Trouble Codes With Test Charts (V8 & V12)) Section 82 (Computer Relearn Procedures) Section 83 (Diagnostic Trouble Codes With Test Charts) Section 84 (Air Bag Restraint Systems) Section 85 (Air Bag Restraint Systems) Section 86 (Air Bag Restraint Systems) Section 87 (Air Bag Deactivation Procedures) Section 88 (Power Convertible Top - Z8) Section 89 (Specifications & Procedures) Section 90 (Axle Shafts (Front & Rear) - Repair) Section 91 (Generators & Regulators) Section 92 (Brakes - Repair) Section 93 (Brakes - Repair (E46)) Section 94 (Starter - Repair (2WD)) Section 95 (Starter - Repair) Section 96 (Starters) Section 97 (Cooling Fans - Repair (E46)) Section 98 (Starter) Section 99 (Specifications & Drive Belt Routing) Section 100 (Cabin Air Filter) Section 101 (Cabin Air Filter) Section 102 (Servicing - A/T) Section 103 (Manual Transmission - Servicing) Section 104 (Standard/Automatic Transmission - Overview) Section 105 (Removal & Installation - (A5S 440Z)) Section 106 (Removal & Installation - (A5S 325Z)) Section 107 (Transmission - Overview) Section 108 (Removal & Installation (A5S 325Z)) Section 109 (REMOVAL & INSTALLATION - 325xi & 330xi) Section 110 (Automatic Transmission - Removal & Installation - X5 (A5S 440Z)) Section 111 (Automatic Transmission - Removal & Installation - A5S360R) Section 112 (Automatic Transmission - Removal & Installation - X5 (6HP26Z)) Section 113 (Automatic Transmission - Removal & Installation - 6HP19Z) Section 114 (Manual Transmission - Removal & Installation (A5S 360R/390R)) Section 115 (Overview - 5-Series) Section 116 (Propeller Shaft - Repair) Section 117 (Removal & Installation (S5D 200G/S5D 250G/M52TU/M54)) Section 118 (Air Bag Restraint Systems) Section 119 (Air Bag Restraint Systems) Section 120 (Removal & Installation (S6S 420G)) Section 121 (Manual Transmission - Torque Specifications, Removal, & Installation (GS6-37BZ)) Section 122 (Removal & Installation - X5 (S5D 280Z)) Section 123 (Removal & Installation - M3 (S6S 420G SMG)) Section 124 (REMOVAL & INSTALLATION - 330i, xi & Ci (GS6 37BZ)) Section 125 (Removal & Installation (A5S 3690R/390R)) Section 126 (On-Vehicle Servicing - GA6HP26Z) Section 127 (On-Vehicle Servicing - (S5D 200G/250G)) Section 128 (On-Vehicle Servicing - (GS6-37BZ)) Section 129 (Clutch - Repair) Section 130 (On-Vehicle Servicing - (S5D 200G/250G & GS6S37BZ SMG)) Section 131 (On-Vehicle Servicing - (S5DZ & GS6X37BZ)) Section 132 (Transfer Case Removal & Installation - X3) Section 133 (Transfer Case - Removal & Installation) Section 134 (Transfer Case Servicing) Section 135 (Transfer Case - Overhaul) Section 136 (Transfer Case - Overview (X-Drive)) Section 137 (Gear Shift Mechanism - Repair) Section 138 (Gear Shift Mechanisms) 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 (H
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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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