BMW M62TUB35 engine

This engine was produced between 1996 and 2003. The main material from which its cylinder block was made was aluminum. The power system here again and again was an injector, and the engine itself resembled the familiar letter V. In this device there were 8 cylinders, and each of them had 4 valves. All this design created the stroke of the piston. The diameter of the cylinder in this case is 84 millimeters. The compression ratio here is equal to 10. The volume of this power unit was 3.5 liters. The power of this engine is considered to be 245 horsepower at 5800 rpm. And the torque here is equal to 345 N*m at 3800 rpm.

Professionals, specialists and developers have always recommended to fill the tank with gasoline of at least 95 brand. In this unit, environmental standards Euro 2 and 3 are installed and work in full force. Fuel consumption here is very disappointing, on the highway it is as much as 9.1 liters per 100 kilometers. On the mixed territory this indicator increases to 12 liters, but in urban conditions it is a huge 17 liters per 100 kilometers. Oil for 1000 kilometers of distance is used up to 1000 grams maximum.

This unit can be filled with oil 5W-30, 0W-30, 5W-40, 0W-40. It can be filled with about 7.5 liters of oil at a time. But the replacement should be carried out once every 7-10 thousand kilometers. Specialists have fixed the approximate operating temperature of the device at 105 degrees. The resource of this engine in practice shows even more than 400 thousand kilometers. Potentially, it is possible to achieve even more than 400 horsepower with the help of proper tuning.

M62TUB35 engine specifications

Advantages

This model was part of the modern forms of the V-shaped engine. It began production in 1996 and replaced several quality predecessors. The base was a very popular predecessor that offered a short stroke crankshaft. The cylinder bore was also slightly reduced. The Nicasil liners were of high quality, so they remained unchanged. And after 1998, alusil began to be used for similar purposes a little at a time. After the predecessor, the pistons were also completely changed. But the connecting rods made of metal ceramic remained the same.

At the cylinder block, the heads became a little modernized, the camshafts were changed, and the characteristics were also significantly improved. The springs and other plates were much lighter, and the valves remained about the same. The intake and exhaust diameters have been improved for good performance. The caps on the cylinder head are made of magnesium, but the timing chain has only one row. The life expectancy of this part is roughly between 150 and 200 thousand kilometers. The intake manifold has received a lot of improvements, the throttle plates are completely updated. Ignition approximately left the same coils, but now there is a thermostat, which can be programmed to the necessary indicators. The control system was now produced by the famous developer Bosch.

After 1998 the engine was being improved, and the new system for changing the gas distribution phases on the intake shaft turned out to be excellent. This Vanos along with the intake manifold, which had narrow channels, added up to one quality working mechanism. And on top of that, there was an electronic throttle slide and the latest control system from Bosch. This device was often put on BMW cars, which had the index 35i. In 2001, there was already a replacement for this engine, and a few years later it was forced out of the market of 3.5-liter units. Motorists evaluate this motor as very good.

Disadvantages

The engine often knocks. This is due to the fact that the timing chain is subject to stretching, its shelf life is only 150-200 thousand kilometers, after which the part must necessarily be replaced. Also, the bypass bar near the chain or tensioner, in addition, and the tensioner itself can become problems. Vanos sometimes does not cope with all the duties and also jams.

Sometimes leaks can be noticed. This is due to a weak gasket on the valve cover, you need to change it in time to prevent such troubles. The cooling liquid bath also allows rare leaks. Here you can fix it by replacing the pump, the bath itself or the gaskets on the intake manifold. At revs, the car often floats. The engine runs unstable, because air is sucked up on the intake manifold. This can happen because of a broken KVKG, flow meter or sensors on the throttle flaps. It is also possible that the throttle valves themselves are broken.

Oil consumption often increases after 250,000 kilometers. This can be corrected by changing the removable oil caps. The cushions on the engine break after 200 thousand kilometers, and the generator is not so stable to cope with everything. In the motor you need to pour only the right oil, the developer does not recommend saving on liquids, because then you can not count even large finances. It is also necessary to constantly monitor maintenance and care, the unit will repay with its durability and fidelity.

Modifications

The modifications for this unit have practically no differences. The only indicators that were changed in subsequent versions were power and maximum torque. So the first indicator was equal to about 235 horsepower at 5800 rpm. But the torque was different. Its value reached 320 N*m at 3300 rpm.

Chip Tuning

At the very beginning of the chipping process it is necessary to put an intake manifold that would have wide channels, such examples could often be found on predecessors or competitors. The sport intake along with the camshafts would require a full tuning. After that you could get 330 to 340 horsepower ideally and that’s a remarkable figure.

To make more than 400 horsepower, you have to choose the compressor yourself carefully and for a long time. The market is oversaturated with ready-made kits for this business, but their cost can scare away the average user. It is necessary to choose a set of compressor, a pump from a well-known manufacturer and at a pressure of half a bar you can reach a mark of more than 400 horsepower. It will be too expensive to turbocharge the car and in this case the best solution is to choose another model.

This engine is installed on the following models:

BMW 7-Series (E38)