You are reading this because you own the VW TDI diesel car with 45 MPG. 250K. Diesel engines have to be better built than any gas engine due to the incredible PSI internally they create. The fuel injectors operate at near 26000 PSI, and their turbo does not have bearings. To keep these two items in top shape because replacing is dire. 4000 (parts and labor). The fuel injectors can become clogged or not spray the pattern when new and when it happens, you will know it by how it runs. Likewise, if you suddenly have a ton of black smoke pouring out the rear end, your turbo has died. Usually, with periodic maintenance, both can last for the life of the car. The VW diesel engines love the highway. Love high speeds like on the autobahn. It helps clean them out from soot. Usually, the cars already use cleaner diesel, so the soot issue is no longer a real concern.
But again, it can be where the EGR is concerned. The turbocharger design on Volkswagen TDI engines does not use bearings. Rather, the turbocharger shaft floats on a small film of oil that coats the inner race of the solid brass bearing. A particle in that film will function as a piece of sandpaper and grind away the surface of the shaft and bearings. When this occurs, the gold plating begins to show and may be grooved. As time moves on, eventually the shaft will wobble and the turbo fan will impact the walls of the turbo, bending the blades or pitting the surface, which should be super smooth. The cheapest remedy is simply to change your oil and filter no later than every 10,000 miles. Changing every 5000 miles may required if dusty conditions exist. This is the prime reason to keep the engine with clean oil. Remember, the turbo has no bearings.
8). This will clean any soot that has gathered on injectors over the years. The process takes around 30 minutes and directly enters the fuel injectors from the can. Disable the fuel pump in the gas tank by removing the fuse for it. Locate the black fuel filter on the left side. There are four rubber hoses.Two come from the fuel tank and two connect to the fuel rod that supplies the it to the injectors. Disconnect the two from the fuel filter that connect the fuel rod. Insert to plastic tubing pieces into each end of the rubber hose and then insert the other ends into the can. Place the can in a secure place or have someone hold it with gloves. Start engine and run the engine for a few minutes at 1500, 2000, 2500, 3000, 3500, 4000 RPM. The can will get hot. Allow the engine to idle and continue it again. Make sure you watch how much cleaner is left. When done, reconnect the two lines to the fuel filter. That is it. If they were clogged at all, you should better idling and performance. TransportationHow Much Carbon Dioxide is Produced by Airplanes?
Disappointingly, my Jetta yielded only 28.6 mpg during testing. That鈥檚 light years away from the EPA-stated estimates of 30 mpg in the city, 40 mpg on the highway, and 34 mpg in combined driving. Talk about fantasy vs. Comparatively, the Jetta feels alive in your hands, daring you to toss the car into corners, zip past slower moving traffic, and insert yourself into small holes in traffic. That鈥檚 not to say that the Jetta rides harshly. Far from it, as this VW is actually quite compliant over bumps yet remains solidly planted in spite of its simple torsion beam rear suspension. And that illustrates the trick that German car companies have mastered. They expertly tune a suspension so that it doesn鈥檛 beat you up, yet delivers exceptional balance and athleticism when called upon. Furthermore, the steering is light and easy around town, but with speed proves precise and delivers a good amount of feel.
