The E39 M5 Video Guide Blog » s62 engine

Replacing the Driver Side Intake Cam Position Sensor in your E39 M5

Brooks — Sun, 20 Dec 2009 12:22:38 +0000

Here is a Do it Yourself overview that could be helpful for E39 M5 owners who have the patience, skills and tools to do this job. Since this is the most difficult of the 4 cam position sensors to to get to, it could be tricky.

You will need the following tools: 10mm Wrench, 5mm Allen wrench, Phillips screw driver and a Peake Research code reader (or other OBD II tool) will come in handy. The actual part you will need is an Intake cam position sensor.

The job entails changing the bank 2 intake cam position sensor which is also known as the USA driver side with the Intake cam position sensor. There is a total of 4 position cam position sensors in the E39 M5. This includes the 2 intakes and the 2 exhausts. Sometimes, they need to be replaced – usually they start to fail after about 60,000 miles. This instruction is for changing one of the 2 intake CPS’s. Read the detailed write up and see the pictures in this M5board discussion site. I talk more about this repair in the Video Guide.

Check the following site: http://www.m5board.com/vbulletin/e39-m5-e52-z8-discussion/106776-tech-diy-replacing-usa-driver-side-intake-cps.html

S62 Intake Air Temp Sensor Relocation Kit

Brooks — Sun, 20 Dec 2009 10:15:27 +0000

Here’s another product from Bimmerzone.com. The UFMotorsport S62 Air Temp Sensor Relocation Kit is designed for the E39 M5 manufactured from 1999-2003. Since the airflow meters of these engines are located near the hot radiator, the factory sensor has been know to send inaccurate readings to the DME. So when the DME receives these false high readings, the engine’s performance is affected because the fuel to air mixture ratio can be incorrect for the actual ambient temperature.

This kit enables you to transfer the temperature sensor to the lower front of the car. In its new location near the air dam,where it will always send the real temperature reading to the engine’s DME. This simple modification will greatly improve your car’s performance.

This site also lists all the parts that are included in this kit.There is also a discussion of important installation points. At the bottom of the page is more information about the Bosch sensor that comes with this package.

Check this product out at the following site: http://www.bimmerzone.com/performance_UFM.htm

Smoking Facts About the S62 V-8 Engine

Brooks — Thu, 17 Dec 2009 04:34:10 +0000

BMW’s V-8 is an engine everybody can fall in love with. Here is an article that gives us the facts about the E39 M5’s S62 V8 engine.

To start with, the E39 M5’s aluminum cylinder block is like the M62’s basic design including the long-lasting and weight saving silicon walls that are impregnated with silicon. BMW Engineer Wolfgang Kreinhsfner modestly explained that they wanted to create lots of torque curve. The result is a specific casting with 94.0 mm cylinder with a stroke of 89mm. This displaces approximately 5 liters and like what the hot-rodders used to say, “there is no substitute for liters”.

Breathing is of course a top priority and BMW M spared no expense in developing the S62′s induction system. This is why they designed eight individual throttles, one for each cylinder.
These throttles eliminate a “lag time” inherent in airflow and allow the engine to react much more quickly to throttle movements. The throttles of cylinders 4 and 8 also have their own feedback potentiometers to monitor the throttles’ operation. If a fault is recognized, the system switches to one of four “limp-home” modes that can allow operation at up to 62 mph.

Also, the S62 is BMW’s first V-8 engine equipped with Double VANOS, a system that varies the timing of both intake and exhaust valves on both cylinder banks.

For optimum power output, the BMW engineers designed specifically shaped cutouts in the piston crowns for the intake and exhaust valves. This requires a different piston design for each cylinder bank. Through two separate oil passages in the crankcase, the pistons are oil-cooled. The compression ratio is 11.0:1, a full point higher than for the 4.4-liter V-8; this too contributes to the engine’s high power and torque output.

Special designs for this engine include oil-cooled pistons that are made for two cylinder banks. a G-sensitive lubrication system, modified cylinder head, specific cooling system, special camshaft drive, low-back-pressure exhaust system, and a variable tachometer warning zone.

All these are explained in great details in this very informative article.

Read on at the following site: http://www.usautoparts.net/bmw/engines/s62.php