BMW N52, N52K Engine Workshop Manual

Repair manual for BMW 128i 2008 N52, N52n, N52k. This is a 6-cylinder engine with a capacity of 2996 cc. This is done through the timing chain distribution system. Has a DME MSV80 fuel system. Its operating order is 1-5-3-6-2-4. Manufacturer's recommended spark plugs are Bosch FR7NPP332, NGK ILZFR6D11 and NGK PLZFR6A11S. With 1.1mm electrode hole.

Bmw 128i 2008 N52 Repair Manual Pictures of repair procedures and detailed instructions for the mechanics of the engines built into the vehicle. In addition, you will find manufacturer data and specifications for more precise repairs.

• Cars: BMW 125 E82/88, BMW 128 E82/88, BMW 130 E87, BMW 323 E90, BMW 325 E90/91/92/93, BMW 328 E90/92/93, BMW 330 E90/92/93, BMW 523 E60/61/F10, BMW 525 E60/61, BMW 528 E60/61/F10, BMW 530 E60/61, BMW 630 E63/64, BMW 730 E65/66/F01, BMW X1 E84, BMW X3 E83/F25, BMW X5 E70, BMW Z4 E85/89.
• Engine: N52, N52n, N52k
• Fuel: Gasoline
• Volume: 3.0 l
• Years of production: 2004-2011(2015)
• Compression ratio: 11/10.7
• Engine weight, k: g 118-178
• Recommended oil: 5W-30, 5W-40

Main problems of the N52 engine

• Unsuccessful piston group (on the first engines until about 2007) High oil consumption
• Hardening of MSC (valve seals) with a mileage of 80 - 100,000 km High oil consumption up to 1 liter or more per 1000 km
• Rupture of the membrane of the crankcase ventilation valve (crankcase ventilation valve) Unstable engine operation, whistling, oil consumption
• Problems with the Vanos system Poor traction at low speeds, unstable idling, errors in the vanos system
• Exhaust camshaft and bed wear Knocking noise, low oil pressure
• Coking of piston rings Oil consumption more than 1 liter per 1000 km
• Problems with the Valvetronic motor Unstable idle
• Problems with the DISA system Errors, knocking in the intake manifold
• Valve cover gasket leaking Burnt oil smell
• Chain stretch and guide wear Knocking, loss of dynamics, errors in camshaft position
• Electric pump Engine overheating

Change the oil at least every 10,000 km. We recommend only high-quality synthetic oil with a viscosity no lower than 5W-40, 0W-40. When using 5W-30, 0W-30 oils, the probability of exhaust camshaft and bed wear is almost 100%

Replacing valve stem seals when oil consumption is over 400 ml per 1000 km. Usually with a mileage of 80-100 thousand km

Repair or replacement of KVKG with a mileage of 100-120 thousand km. For engines with a metal valve cover, it is more advisable to replace the entire valve with tubes; for a plastic valve cover, it is optimal to carry out repairs by replacing the membrane

Installation of a repair kit or replacement of DISA control units. The large (outer) DIS has a resource of approximately 100-150 thousand km, while the small (lower) DIS has a resource of more than 200 thousand km. If repairs are not carried out in a timely manner, the damper is destroyed and small elements enter the engine, causing it to fail.

Replacement of the main chain after a mileage of 200 thousand km

Maintenance of the Vanos system according to condition. With a mileage of 100-150 thousand.

Replacement of the Valvetronic motor when errors occur or when the engine is unstable, usually with a mileage of more than 100 thousand km. When replacing a motor, engine adaptation is often required (“installation of Valvetronic stops”)