BMW 540I Parts and Technical Articles

If one was to compare an automobile and all of its systems to the human body, the exhaust system would be analogous to the intestines. Its job is to get rid of waste products, and there are several BMW 540I parts that comprise your vehicle’s exhaust system.

When the gas-fuel mixture is burned in the cylinder, it produces the power stroke, which pushes the piston downwards. The trip back up is called the exhaust stroke. A valve opens in the cylinder head, and the waste gases are pushed out into the exhaust manifold. This is the first of the BMW 540I parts through which exhaust gases are processed. The exhaust gases travel past an oxygen sensor, which measures the amount of oxygen in the exhaust, and signals the fuel injectors to adjust the fuel mixture accordingly. The importance of the oxygen sensor is something you shouldn’t discount. BMW 540I parts such as this allow your vehicle to run much more economically, using only as much fuel as it requires. Some signs of a defective oxygen sensor include increased fuel consumption and unusually foul smelling exhaust. Once past the oxygen sensor, these gases pass into the catalytic converter, where toxic elements such as hydrocarbons and are removed. The last of these BMW parts through which the exhaust passes before exiting out the tailpipe is the muffler. Today’s muffler is far more durable than those of thirty and forty years ago, and less subject to rust-out. It also does a better job in keeping your BMW running quietly.

Most Popular BMW 540I Parts

  • 82141467704 Genuine BMW Antifreeze/Coolant; BMW Antifreeze; 1 Gallon
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Latest ethylene glycol based formulation recommended for all specified BMW models.
    MY94-03 - 540i
    MY17-19 - 540i
    Approved for all BMW engines. Concentrate. For distilled water, see part # 55 7864 010.
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    MY17-19 - 540i xDrive
    Approved for all BMW engines. Concentrate. For distilled water, see part # 55 7864 010.
    $22.39
    Reg
    $23.32
    List
    $24.75
  • 51148132375OE Genuine BMW Emblem; BMW Roundel; 82mm Diameter
    In Stock Status
    In Stock
    Ships within 1 Business Day
    MY97-03 - 540i
    Also need (2) 51141807495 grommets per emblem. 1 per car.
    MY94-95 - 540i
    Also need (2) 51141889489 grommets per emblem. 2 per car.
    MY97-98 - 540i Sport
    Also need (2) 51141807495 grommets per emblem. 1 per car.
    MY01-03 - 540i Sport Wagon
    Also need (2) 51141807495 grommets per emblem. 1 per car.
    $44.99
    Reg
    $46.86
    List
    $44.32
  • 51248168035 URO Parts Trunk Lid Handle; Electric; Push Button in Trunk Lid
    In Stock Status
    In Stock
    Ships within 1 Business Day
    MY97-03 - 540i
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    $29.39
    Reg
    $30.61
    List
    $91.98
  • 36131181081KIT AAZ Preferred Emblem; Wheel Center Cap; 58mm Diameter; SET of 4
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Verify existing center cap diameter prior to ordering, variations may exist. This kit contains all...
    MY94-98 - 540i
    MY99-03 - 540i
    Sedan models only.
    $33.08
    Reg
    $34.46
    List
    $35.36
  • LT4160 LTI Tools Wheel Lock Key
    Low Stock Status
    Low Stock
    Ships within 1 Business Day
    MY94-19 - 540i
    For use with BMW and MINI internal spline drive wheel locks. Includes 20 wheel lock keys, a nylon sleeved 1/2" drive 17 mm socket, and a custom blow molded carrying case.
    MY01-03 - 540i Sport Wagon
    For use with BMW and MINI internal spline drive wheel locks. Includes 20 wheel lock keys, a nylon sleeved 1/2" drive 17 mm socket, and a custom blow molded carrying case.
    MY17-19 - 540i xDrive
    For use with BMW and MINI internal spline drive wheel locks. Includes 20 wheel lock keys, a nylon sleeved 1/2" drive 17 mm socket, and a custom blow molded carrying case.
    $147.99
    Reg
    $154.16
    List
    $169.95
  • 16116756772 Blau Fuel/Gas Cap; With Attachment Cord
    In Stock Status
    In Stock
    Ships within 1 Business Day
    1 per car.
    MY00-19 - 540i
    MY99-99 - 540i
    For iT wagon models only.
    MY01-03 - 540i Sport Wagon
    MY17-19 - 540i xDrive
    $19.69
    Reg
    $20.51
    List
    $33.95
  • 12137599219 Bosch Ignition Coil
    In Stock Status
    In Stock
    Ships within 1 Business Day
    This brand includes the spark plug connector.
    MY97-03 - 540i
    MY01-03 - 540i Sport Wagon
    $35.99
    Reg
    $37.49
    List
    $118.55
  • 24118612901 ZF Auto Trans Oil Pan and Filter Kit; GA8HP45Z/GA8HP70Z Transmissions
    In Stock Status
    In Stock
    Ships within 1 Business Day
    MY17-19 - 540i
    For Automatic Transmission GA8HP45Z and GA8HP70Z. Contains: (Qty.) (1) Oil Pan with Filter, (1) Oil Pan Gasket, (1) Drain Plug, (1) Fill Plug, (13) Pan Bolts.
    MY17-19 - 540i xDrive
    For Automatic Transmission GA8HP45Z and GA8HP70Z. Contains: (Qty.) (1) Oil Pan with Filter, (1) Oil Pan Gasket, (1) Drain Plug, (1) Fill Plug, (13) Pan Bolts.
    $71.99
    Reg
    $74.99
    List
    $195.21
  • 51148132375KIT AAZ Preferred Emblem; With Mounting Grommets, KIT
    In Stock Status
    In Stock
    Ships within 1 Business Day
    This kit contains the Genuine 51148132375 roundel along with two Genuine mounting grommets.
    MY97-03 - 540i
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    $46.19
    Reg
    $48.11
    List
    $45.54
  • 13631726591 O.E.M. Throttle Position Sensor
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Please verify appearance, connections, and part number on existing switch prior to ordering. 1 per...
    MY94-99 - 540i
    MY94-95 - 540i
    Manufacturer Body Code: E34
    MY97-03 - 540i
    Manufacturer Body Code: E39
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    Manufacturer Body Code: E39
    $37.99
    Reg
    $39.57
    List
    $106.94
  • 07129904150 O.E.M. Speed Nut; 4.8 - 9mm
    In Stock Status
    In Stock
    Ships within 1 Business Day
    MY97-19 - 540i
    MY01-03 - 540i Sport Wagon
    MY17-19 - 540i xDrive
    $0.33
    Reg
    $0.34
    List
    $0.56
  • 64116923204 Mahle Behr Blower Motor Resistor/Regulator; AC Final Stage Unit; 39 Heatsink Pins
    In Stock Status
    In Stock
    Ships within 1 Business Day
    For models with automatic climate control. Due to numerous BMW factory supercessions and updates...
    MY97-03 - 540i
    MY97-03 - 540i
    Final Stage Unit; Manufacturer Body Code: E39
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    MY01-03 - 540i Sport Wagon
    Final Stage Unit; Manufacturer Body Code: E39
    $26.25
    Reg
    $27.34
    List
    $154.92
  • 13621433077OE O.E.M. Engine Cooling Fan Sensor; In Lower Radiator Hose
    In Stock Status
    In Stock
    Ships within 1 Business Day
    For replacement o-ring alone see 091158010. 1 per car.
    MY99-03 - 540i
    MY99-03 - 540i
    Coolant temperature sensor for auxillary/electric fan control.
    MY01-03 - 540i Sport Wagon
    MY01-03 - 540i Sport Wagon
    Coolant temperature sensor for auxillary/electric fan control.
    $14.49
    Reg
    $15.09
    List
    $57.43
  • 83212365946 Genuine BMW Engine Oil; 5W-30 Full Synthetic; TwinPower Turbo
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Latest version BMW Twin Power Turbo motor oil. Recommended for all BMW engines except M-Type (S54,...
    MY97-19 - 540i
    Recommended for all BMW engines, except M engines S54, S62, S65 and S85 or Advanced Diesel engines M57, N47 and N57. Meets Specifications: ACEA A3/B4, API SL, BMW Longlife 01.
    MY01-03 - 540i Sport Wagon
    Recommended for all BMW engines, except M engines S54, S62, S65 and S85 or Advanced Diesel engines M57, N47 and N57. Meets Specifications: ACEA A3/B4, API SL, BMW Longlife 01.
    MY17-19 - 540i xDrive
    Recommended for all BMW engines, except M engines S54, S62, S65 and S85 or Advanced Diesel engines M57, N47 and N57. Meets Specifications: ACEA A3/B4, API SL, BMW Longlife 01.
    $8.99
    Reg
    $9.36
    List
    $10.38
  • 07589062376 Drei Bond Sealant; Type 1209; 30ml Tube
    In Stock Status
    In Stock
    Ships within 1 Business Day
    MY94-19 - 540i
    Silicone-based, permanently elastic sealing compound. Temperature resistant up-to more than 200 deg. C. For all surface and flange seals on engines and transmissions. Color: transparent.
    MY01-03 - 540i Sport Wagon
    Silicone-based, permanently elastic sealing compound. Temperature resistant up-to more than 200 deg. C. For all surface and flange seals on engines and transmissions. Color: transparent.
    MY17-19 - 540i xDrive
    Silicone-based, permanently elastic sealing compound. Temperature resistant up-to more than 200 deg. C. For all surface and flange seals on engines and transmissions. Color: transparent.
    $20.69
    Reg
    $21.55
    List
    $28.25
  • 34211161806 Genuine BMW/Mini Disc Brake Rotor Set Screw; Allen Head; M8x14mm
    In Stock Status
    In Stock
    Ships within 1 Business Day
    1 screw per rotor unless otherwise noted.
    MY94-03 - 540i
    MY17-19 - 540i
    Front Left
    Front Right
    Rear Left
    Rear Right
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    MY17-19 - 540i xDrive
    Front Left
    Front Right
    Rear Left
    Rear Right
    $1.57
    Reg
    $1.64
    List
    $1.61
  • 0332019456 Bosch Multi Purpose Relay; With Diode and Mounting Notch; 12V 30Amp Orange with 4 Prong Connector
    $8.25
    Reg
    $8.59
    List
    $32.49
  • 36136783536 Genuine BMW Wheel Center Cap/Emblem; Center Cap with Emblem for Standard Wheel; 68mm Diameter with 2mm Lip (15mm Overall Depth with Ten Plastic Tabs)
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Please verify appearance and size of existing caps prior to ordering, can vary depending on wheel...
    MY97-03 - 540i
    MY94-95 - 540i
    For models with 10 spoke wheels.
    MY98-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    $14.39
    Reg
    $14.99
    List
    $17.50
  • 32306793632 Genuine BMW/Mini Stability Control Steering Angle Sensor; For Dynamic Stability Control; UNCODED PART
    In Stock Status
    In Stock
    Ships within 1 Business Day
    This part comes UNCODED, vehicle MUST be taken to dealership for program coding in order to function....
    MY97-03 - 540i
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    $292.99
    Reg
    $305.20
    List
    $331.73
  • 17111712963 O.E.M. Fan Shroud Rivet/Fastener; Plastic Push-Pin Rivet For 8mm Hole, 15mm Diameter Face
    In Stock Status
    In Stock
    Ships within 1 Business Day
    Used for fan shroud, auxiliary fan housing and some interior trim panels, depending upon model....
    MY94-03 - 540i
    MY97-98 - 540i Sport
    MY01-03 - 540i Sport Wagon
    $0.29
    Reg
    $0.30
    List
    $0.69

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Auto Parts We Offer for BMW 540I