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• N52 engine swap: step by step Engine out the front, gearbox left in: one picture per step, BMW's warnings and the gearbox bolt order. N52
• N52 engine swap: everything you need E90 328i: the one-use aluminium bolt sets, mounts, gaskets, fluids, tools and BMW torque for the job. N52
• N55 valve cover replacement Cover or gasket, the fuel line rules, BMW's 26-screw order at 8.5 Nm and the 28A0 adaptation. N55
• N55 oil filter housing gasket Which gaskets fit your car, the E10 swivel trick for the rear bolt, 22 Nm and the coolant bleed. N55
• N55 fuel injector replacement Coil, plug or injector, EU5 or EU6, the seals, BMW's torque values and coding each injector. N55
• N55 expansion tank replacement How to prove the leak, which tank fits your car, the steps and the coolant bleed. N55
• N55 turbo oil and coolant line leaks What BMW says needs the turbo off, every seal by BMW number and the torque specs. N55
• N54 injector replacement Index rules by bank, the two seals you replace every time, 13 and 23 Nm, and coding every injector. N54
• N54 oil and filter change Drained warm, new element and seals, 6.50 liters back in. Fits all US N54 cars. N54
• N54 spark plugs Plugs sit under the acoustic cover. Intake and coils off first, then the plugs. N54
• N54 engine air filter Hose off, lid up no more than 12 cm, element swapped, hose back on. N54
• N54 brake fluid flush Full flush with new DOT 4 low viscosity fluid, then the reminder reset. N54
• N54 cabin filter E90, E92, E93 335i and 335xi, E82, E88 135i. The housing sits under the cowl. N54
• B58 turbo swap Stock or bigger: every step, torque spec and one-time seal, with 8 diagrams. B58
• B58 PCV valve replacement Gen 1 B58 whistle or smoke: check BMW's warranty first, then the kit and the steps. B58
• B58 oil filter housing and cooler gaskets Which gasket set is which, screws out 6 to 1 and back 1 to 6 at 10 Nm, and the vacuum refill. B58
• B58 heat management module Gen 1 or TU part numbers, the plenum off in order 7 to 1, new seals, and the module torque for your car. B58
• B58 electric water pump Which pump your B58 takes, the seals that go with it, 10 or 19 Nm by mount, and the bleed. B58
• B58 turbo oil and coolant lines All four turbo lines with the turbo in the car: G20 and Gen 1 part numbers, the O-rings, 8 Nm. B58
• B58 expansion tank and vent hose Which tank fits your car, the G20 wheel-well path, the new strut screw, and the refill. B58
• BMW differential output seals Front and rear output seals on the G20, G01, F30 and G30: which seal, the rear diff drop, and the torques. G20, G01, F30, G30
• Z4 M40i upper radiator hose The hose from the engine outlet to the radiator, the teardown it takes, and the torques. Same layout as the GR Supra. B58
• B46 / B48 turbo coolant and oil lines All four turbo lines without pulling the turbo: which one leaks, part numbers by year, 8 Nm and the coolant bleed. B46, B48
• B46 / B48 downpipe and ZF 8HP service Turbo V-band clamp and gasket ring by car, torque by model, then the 8HP fluid and pan with the scan-tool level check. B46, B48
• F30 328i water pump and thermostat What to replace on an N20 or N26. N20, N26
• N55 spark plugs and coils Plug or coil, the coil swap test, the right plug for your car and the reminder reset. N55
• N55 brake fluid flush How often, which DOT 4 LV fluid, the 1.0 L it takes, the pressure bleeder steps and the reset. N55
• N55 engine air filter Five BMW numbers and which one your car takes, the steps, 2.5 and 3 Nm and the reset. N55
• N55 cabin filter The right BMW number for your chassis, the steps by car and the X models' second filter. N55
• N63 maintenance: oil and PCV The right oil, why we change it every 2,500 miles, BMW on additives, and the vent lines that fail. N63
• N55 xDrive front differential removal F30, F32 and F36: engine support, shafts, the 4 diff bolts at 140 Nm and the alignment. N55
• BMW flex disc (guibo) replacement On jack stands, no lift: which disc fits your BMW, new bolts, torque plus angle, and the arrows. Any BMW
• G-series front axle boots Measure first: 106 mm means a new shaft. Then both boots from the inner end, which kit, grease by weight and torque. Any BMW
• xDrive transfer case fluid change One oil for almost every xDrive: which cars, how much, 60 Nm, and the reset step everyone skips. Any BMW
• G20 differential fluid change Which diff oil by build date, how much, and where the plugs are. Every plug 60 Nm. B46, B48, B58
• BMW transmission guide Every BMW gearbox family in one place: automatics, manuals, SMG and M DCT, with fluids by code. Any BMW
• Transmission lookup: F and G series Find which gearbox your F or G chassis BMW has, by model and engine. Any BMW
• Transmission lookup: E series Find which gearbox your E chassis BMW has, by model and engine. Any BMW
• ZF 8HP automatic The eight-speed in most modern BMWs: gearbox codes, ATF 3+ and BMW's lifetime fill rule. Any BMW
• ZF 6HP automatic The six-speed automatic: GA6HP19Z, 26Z and 32Z, ATF 2, and why you never mix fluids. Any BMW
• ZF 5HP automatic The five-speed automatic: A5S codes, ATF 4 and the black data plate exception. Any BMW
• GM 6-speed automatic GA6L45R: Dexron VI and BMW's lifetime fill. Any BMW
• GM 5-speed automatic A5S 360R and 390R: which fluid by gearbox code, read off the oil pan label. Any BMW
• Six-speed manuals Getrag and ZF six-speeds: MTF LT-2 or LT-3 and the 03/2007 switch. Any BMW
• Five-speed manuals Getrag and ZF five-speeds and the MTF LT-2 rule. Any BMW
• SMG and M DCT Sequential and twin-clutch M gearboxes: S6S 420G, GS7S47BG and GS7D36SG. Any BMW
• BMW fluids guide Which engine oil your BMW takes, by model year, from BMW's own chart. Any BMW
• Differential oil Which oil each BMW group takes, part numbers and the lifetime fill rule. Any BMW
• S55 crank hub Why the S55 crank hub can slip, and which one to buy. S55
• N63 valve stem seals Why the N63 burns oil and what BMW's bulletins say. N63
• Dealer visit with a tuned BMW How a routine dealer update can wipe or brick a tuned DME, what ISTA sees, and the checklist before every visit. Any BMW
• Find your part number How to read the number off the part or the catalog. Any BMW
• Genuine vs OEM vs aftermarket What each word means on a BMW part. Any BMW
• Fitment check Not sure it fits? Check before you buy. Any BMW