03
Dec

Audi A4 at 105 gCO2/km only!

No commentsAudiDecember 3rd, 2010admin

Less than 4 liters per 100 km and only 105 g / km CO2 emissions: a record for the family sedan segment won by the Audi A4 TDI Concept e.
Admittedly, this is not a version ready for market, but the builder says that the prototype ring presentation is very close. The Audi A4 TDI Concept es’affirme therefore as a champion of
the economy and ecology for its class, without using hybrid or electric engine technology.
The cover thus contains a 2.0 TDI direct-injection 120-horsepower sedan that allows to reach a top speed of 206 km / h. It uses several solutions to optimize its effectiveness and
efficiency, as a spring rate of the intake valves, better heat exchange and the decoupling of the air conditioning compressor to reduce its consumption. These measures alone can
reduce CO2 emissions by 5 grams / km.
We find in addition a system for recovering kinetic energy during braking, coupled with a “Stop & Start shutdown and automatic restart of the engine. Gearbox side, three to six reports
have been extended.
Side bearing, tires and bodywork have been optimized to provide less air resistance and ground, while the driver has information on the dashboard to drive more economically.
Similarly, the car navigation system offers a systematic alternative route “low consumption”.

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02
Dec

Fast and efficient?

No commentsAutomobileDecember 2nd, 2010admin

The GTI is simply modern engines 1.4, but they make good use of turbocharging and direct injection, both to curb consumption that climb to power. Thus the Alfa and Seat have both a 1.4 petrol under the bonnet, respectively 135 and 150 hp. Here’s an interesting confrontation …

Multiair. This is the new magic word in Alfa Romeo. With this system, control valves became electro-hydraulics. The advantage is that it allows a continuous adjustment of valve timing based on engine air requirements, among others determined by the position of the throttle pedal. Multiair and is so smart that each cylinder may receive an air / fuel different. Consequence: 10% more power, for a decrease in consolidated same.

Turbo Compressor

At Seat, the engine is more traditional but uses the turbo and the compressor to have the right amount of torque from low areas of the tachometer. Here, it is mainly the compressor working. At 2500 revolutions, turbo compressors and each other. Then around 3500 rounds, the turbo takes over completely. In the case of the Ibiza FR, torque is 220 Nm so, available from 1,250 to 4,500 rounds and rounds. The maximum power is 150 hp.

Alfa also adapts a turbocharged engine Multiair of Mito. But the Italians are more moderate. It was not until 1750 revolutions happen to see a max of 206 Nm on the power of 135 hp, it reaches 5,250 rpm.Again, the Seat is better.

A little more patience

This difference is reflected in the traffic.TheIbiza FR is brimming with torque, so that on wet roads, it has a little trouble passing the cavalry without waxing asphalt.What a difference the little Alfa must, instead, get his breath. It was only around 2000 rpm it feels it really come to life, while the Seat of attack is between 1,500 and 5,000 rpm. DNA using the button a little.Dynamic position D, the Mito is a bit more responsive, but never achieve the feel of Seat.

Yet stopwatch in hand, the two show nearly as fast. With about 8 seconds to reach 100 km / h, they show very respectable performance. The SEAT takes advantage of its dual-clutch gearbox DSG supplied as standard. With that, she dons the passages relative to the speed of lightning and watch the best sprint. The Ibiza FR shade so the 0-100 in 7.6 seconds. In Mito, the gear changes are made “by hand”, which costs a few tenths of seconds. In addition, the Italian had to settle for 5-speed, when the Germano-Spanish continues until the 7th.

Finally, the choice between one or the other will remain a matter of taste. The Seat is more convenient thanks to its 5-door, but it is also more expensive (€ 20,490).

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02
Dec

Volkswagen Passat Turbocharger Replacement

No commentsTurbochargerDecember 2nd, 2010admin

  1. Disconnect the negative battery cable.
  2. Remove the engine undercover.
  3. Remove the air conditioning compressor mounting fasteners. Remove the compressor leaving the lines attached. Support the compressor such that the lines are not stretched or kinked.
  4. Unbolt the turbocharger support bracket.
  5. Disconnect the oil return line at the turbocharger.
  6. Remove the air hoses from the turbocharger.
  7. Disconnect the oil feed line at the turbocharger.
  8. Disconnect the hose for the boost pressure regulation valve vacuum diaphragm.
  9. Unbolt the bracket for the coolant supply line at the boost pressure regulation valve vacuum diaphragm.
  10. Using clamp Tool No. 3094, or equivalent, pinch off the coolant supply hose.
  11. Remove the intake air duct between the cowl and the air cleaner housing.
  12. Remove the air cleaner housing cover.
  13. Label and detach the following lines and electrical connectors:
  14. Wastegate bypass regulator valve
  15. Evaporative Emission (EVAP) canister purge regulator valve
  16. Power outage stage
  17. Mass Air Flow (MAF) sensor
  18. Remove the air cleaner housing and the engine cover.
  19. Disconnect the crankcase breather hose at the valve cover.
  20. Disconnect the oil supply line at the turbocharger.
  21. Remove the heat shield, and sleeve from the coolant return hose.
  22. Using clamp Tool No. 3094, or equivalent, pinch off the coolant return hose, then remove.

  1. Install the turbo, coating the fasteners with Hot Bolt Paste, G 052 112 A3 or equivalent.
  2. Connect the coolant supply banjo fitting and tighten to 18 ft. lbs. (25 Nm).
  3. Using new gaskets, install the turbocharger to the exhaust manifold, coat the bolts with Hot Bolt Paste, then tighten the mounting bolts to 26 ft. lbs. (35 Nm). Tighten the turbo support bracket mounting bolts to 33 ft. lbs. (45 Nm).
  4. Attach the TWC converter to the turbo.
  5. Connect the coolant supply hose.
  6. Install the sleeve and heat shield to the return hose.
  7. Connect the oil return hose.
  8. Make sure the openings are clear and clean. Add fresh engine oil to the turbo through the oil feed line.
  9. Connect the oil supply line to the turbo and tighten to 18 ft. lbs. (25 Nm).
  10. Connect the crankcase breather, then install the engine cover and air cleaner housing.
  11. Attach the following lines and electrical connectors:
  12. Mass Air Flow (MAF) sensor
  13. Power outage stage
  14. Wastegate bypass regulator valve
  15. Connect the hoses and brackets for the boost pressure regulation valve vacuum diaphragm.
  16. Connect the air hoses to the air cleaner assembly and the turbo.
  17. Install the air conditioning compressor and engine undercovers.
  18. Refill the coolant system and bleed as necessary. For additional information, please refer to the following topic(s): General Information and Maintenance, Fluids and Lubricants.
  19. Check the oil level and top off as necessary.
  20. Connect the negative battery cable.
  21. Enter the radio security code.
  22. Start the vehicle and check for leaks, then let the engine idle for approximately 1 minute without increasing the engine speed. This ensures adequate oil supply to the turbo.
  1. WARNING The exhaust flexpipe may be damaged if bent more than 10°.
  1. Disconnect the Three Way Catalytic Converter (TWC) from the turbo.
  2. Unbolt the turbo from the exhaust manifold.
  3. Move the turbo aside to disconnect the coolant supply banjo fitting.
  4. Remove the turbo.

02
Dec

Test Volkswagen Golf GT Express 1.4 TSI 170: double agent Wolfsburg

No commentsVolksWagen AutoDecember 2nd, 2010admin

These figures are perplexing
Already seen in motorsports (including the Lancia rally Volumex), the combination of a compressor and a turbocharger makes its debut today on a large model series, shortly before being extrapolated into several levels power (and capacity) to achieve a complete family in the VW range. After the monograms TDI and FSI, we will see soon a generalization of the TSI acronym? The purpose of the concept, it is true, is tempting: to offer the power of a 2.0 TDI block 170 (the other engine of the Golf GT) on a 1.4 to block direct injection develops 90 hp at the base! The while remaining below the consumption of a 2.0 FSI petrol 150 hp. Fluet but bold, 4-cylinder that allows the tune Golf is the power of 121 hp per liter, when a Ferrari Enzo just 110 hp / liter. Better yet, the qualities of each of the two modes boost parent and add their respective deficiencies.
Two complementary technologies
Thus the compressor operates only from the lowest speeds and up to 2400 rpm when the turbo is still no interest.Next comes a transitional phase of 2 400 to 3 400 rpm for the turbo which he is present before it takes over, alone, above 3500 rpm. The choice of the German mark was made on a conventional turbocharger and a compressor-driven belt. Type “Roots” (2-lobed rotors), it accepts a max speed of 16,300 rpm, 5 times faster than the crankshaft! It is powered by an electromagnetic clutch integrated into a module housed in the water pump. May redeem up to 21.7 bar pressure, engine block to the original aluminum had to be performed by highly resistant cast iron.
Punch to resell
Team to start the finishers Golf GT Twincharger technology will soon be available from other on the Golf Plus and Touran. On the compact Wolfsburg, the small 1.4 TSI grandstanding and not far off in terms of approval of the version 2.0 Turbo GTI. It shows full at all speeds and with good reason, it has 240 Nm of torque available from 1 750 to 4500 rpm. Performance-wise, the Golf “crush” model 2.0 FSI 150 hp more than a second to 0 to 100 km / h (prepared in 7.9 s), and only makes 7 / 10 of a second at the same frangine GTI exercise. Repeats are also strong (80 to 120 km / h in 8s) and flexibility in appointments, it is indeed surprising how easily the engine is expressed, even on the 6th report and at low revs. If the announced consumption amounted to 5.9 l/100 km in the extra urban cycle and 7.2 in the mixed course, our average in our test than the 9 liters (8 liters target should be possible, however) on a course combining sporty driving (a little) and highway (much) however the person back to reality.
The Golf GT TSI appears from 25 500 euros when the GTI variant claimed 27,410 euros. If it does not revolutionize the segment of compact 170-hp (a Renault Megane 2.0T 165 hp Luxe Privilege coin is 23 400 euros), it combines all the same friendly feelings and relatively low consumption in rewarding VW image Pioneer always good to take.
Bertrand Debeuret

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02
Dec

Audi GPS, all lights go green on its way

No commentsAudiDecember 2nd, 2010admin

Audi Travolution present a draft of GPS smart reducing the waiting time at traffic lights to reduce gasoline consumption in the city.

To consume less gasoline in town, the ideal would be to meet as green lights to avoid judgments consecutive restarts, fuel efficient. A simple idea that is, at first, to pure fantasy so the
means to achieve it can be complex. Avient urban developers already attempted with the principle of green wave or signal timing, unfortunately only valid when the streets are not
congested.
Audi did not yet left discouraged in the face of this complexity, as one can see through his project “Travolution”. This information system for the driver connected to GPS, dialogue with
traffic lights in the area, previously fitted, and determine the ideal speed for the least possible wait to fire or not to stop.
Scale tests were conducted in the center of Ingolstadt – the stronghold of the German manufacturer – from a network of 46 so-called intelligent traffic lights. These lights constantly send
messages to cars, indicating the duration of the next phase of green light and red light.
Attractive though it has a small system boundary is to be effective only if the driver follows the speed indicated. This is already not always the case with the legal speed limit when it
comes to security, so if it is to consume slightly less gasoline we imagine that this discipline will be followed by even less. Unless the financial reason is stronger.

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02
Dec

Audi is preparing a hybrid version of its new A8

No commentsAudiDecember 2nd, 2010admin

Just presented, the new limousine to mark the rings is already announced in hybrid version.
Less than 24 hours after his presentation, the new Audi A8 is about her through the Automotive News website. There is indeed an assertion that the German brand is preparing a
hybrid version of the limousine. This is what would have given Rupert Stadler, Audi’s boss, in addition to the presentation of the A8.
Because if its V8 4.2L TFSI is expected to consume 15% less than the current model, it does not seem sufficient, especially against rival BMW 7 Series and Mercedes S-Class that
have or will have a hybrid version. The A8 hybrid block combine gasoline and electric power, while the lithium-ion batteries would be supplied by Sanyo, a partner of Volkswagen
Group
The aim will be to try to do better with the engine the more frugal of the A8, a 3.0L TDI given for 159 grams of CO2 per kilometer.

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02
Dec

Audi R8 electric in Frankfurt

No commentsAudiDecember 2nd, 2010admin

The mark on the rings present at the next Frankfurt show a variation of its electrical R8.
While Audi is preparing to announce the arrival of a convertible version of its famous R8, the site of the Automobile Magazine tells us that this would be discoverable accompanied by
an electric version at the upcoming Frankfurt Motor Show. It would be just a concept car but we guess right away what manufacturer Audi intends to hunt. This is of course Tesla never
ceases to speak of him with his electric Roadster.
It is unclear at present what the electrical specifications of the R8, but the batteries may come from Chinese BYD with which the Volkswagen Group has entered into a partnership.
After abandoning the project of R8 diesel now being discovered in what area the German brand wishes to state its technological research.
If by chance a series version came out, it would crown the beauty in future range E (electric) Audi.

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02
Dec

New Audi A4 Allroad with electronic reconnaissance field

No commentsAudiDecember 2nd, 2010admin

The big Audi A6 Allroad based will soon be alone in the range of breaks from the German fighters. THE Geneva Motor Show will indeed be an opportunity to discover his little sister
Aallroad A4, also with the quattro transmission.
After the A6, in turn, the Audi A4 will receive a declination suv Allroad will be presented at the next Geneva show. It will compete head on the Saab 9-3X, based on the same principle:
a station wagon version of average sedan “crossoverisée”, that is to say, modified in length and height. But while the Saab 9-3X lost 35 millimeters, the A4 Allroad 6.4 centimeters
wins for the latter. Enough to justify the passage quattro, suspension and modified wheel arches bodybuilder.
Three engines are offered: 2.0L TFSI petrol of 211 horses (8.1 litres/100km), 2.0L TDI diesel 170 hp (6.4 litres/100km) and 3.0L TDI diesel 240 hp (7.1 liters / 100 km). The first and
last of them may be coupled to the 7-speed S tronic dual-clutch instead of the 6-speed manual transmission base.
Technology side, we discover the system for DSB OffRoad Detection: sensors determine the type of road on which the vehicle is involved and change the parameters of the CSE
accordingly. Unpublished like device, it had only just seen a system similar in principle to the Mercedes F700 concept car where the suspension adapts to uneven ground.
Optional on the A4 Allroad, there are daytime running lights LED, the automatic high-beam headlights on, like the new Mercedes E-Class, a tri-zone automatic climate control,
crossing the alert line The adaptive cruise control and the new multimedia system with GPS MMI 3D display, DVD, hard drive, Bluetooth and voice commands. A Hi-Fi system Bang &
Olufsen 505-watt 14-speaker is also available.
The Audi A4 Allroad will go on sale from 37 100 euros in early summer, we shall find of course at the Geneva show.

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02
Dec

Audi A1, A8 in Frankfurt

No commentsAudiDecember 2nd, 2010admin

The new small car and the latest generation of large sedan will not appear on the Audi stand at this year’s Frankfurt show. It was not until the end of the year to see them in their form of
production.
As at the Geneva Motor Show, the Audi range will not be complete this year in Frankfurt. The A1 and a new version of the A8 will be notably absent from this next edition. September
is obviously too short a deadline for the German automaker, according to Automobilwoche.
On the A8, CEO Rupert Stadler brand ensures it will be presented in November. However no date has been set for the little A1.
The brand hopes to fill this gap rings with the highlighting of its new A5 Sportback. But the task is difficult since it will be officially presented on July 16 at the ceremony of 100 years of
Audi.
This lack Audi side can form a large part to its direct competitors BMW and Mercedes. These are bound to ensure the show including the presentation of the X1 or the new S class

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02
Dec

Audi R8 electric in Frankfurt

No commentsAudiDecember 2nd, 2010admin

A representative of the brand put an end to rumors about the presentation of the electric version of the R8 at the next Frankfurt Motor Show.
Tesla electric roadster and can sleep (almost) on their ears. The arrival of an electrical R8 is not for now. A spokesman for the brand with the rings held to silence rumors about the
presentation of such a concept at the Frankfurt show.
Online mir, the European press, the source of this information.
At the Frankfurt show next September, Audi will present still an R8 Spyder equipped with a gas engine.
Tesla facing the German giant Audi, the battle promised to be tight. Hope that the prospect of one day seeing a R8 Electric has not completely disappeared.

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