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6

Looks like a check valve for the evaporative emissions system. Hard plastic tubing and the solenoid valve on the left side are strong clues for me.


6

Whether or not it's right for your car, I can't say as I don't know anything about Audis. However, it's normal for there to be some (not a lot) oil in the intake of the cars I'm familiar with.


5

That's actually standard Audi & VW behaviour, not an electrical problem.


4

Sounds you have a small leak. A fluid collects somewhere and then makes itself to the exhaust manifold or headers and because that's hot, it burns/evaporates causing the smoke you are seeing Does it smell like burnt plastic? If yes, then its probably engine oil. I'm not sure if antifreeze would produce a distinct burnt smell as its mostly water/alcohol. ...


4

See Is it OK to replace only 2 tires on an AWD car?. If you call different Audi dealers you're likely to get differing answers regarding how much tread depth difference is OK for the all-wheel-drive system. Nonetheless, I would advocate calling to get specific recommendations for your vehicle, as some all-wheel drive systems are more sensitive to ...


3

Sounds like a transmission related issue. I would take it back to the immediately if it wasn't doing that before they serviced it. I doubt anything they did caused the problem, but if it did the quicker you take it back the better. A slipping torque converter clutch would cause similar symptoms, which could be caused by a bad solenoid, bad torque converter, ...


3

Rotor replacement is normally done when the rotor can no longer be resurfaced and still fall within the acceptable thickness range. The acceptable thickness range is based on stock brake pads though, so if you're using more aggressive aftermarket pads you may have to do replacement rotors sooner than is specified. That rust on the edge doesn't concern me ...


3

All Audi Qauttro's have a driveshaft that connects the front differential with the rear differential. Your car does not have 4wd if it does not have a driveshaft. In my country (Denmark) you can add the car to your profile at https://my.audi.com and add the VIN of the car. Then you can see all information about the car including factory installed options ...


3

To answer your question, it seems like you didn't buy a Quattro. You bought a FWD car, unless Audi invented some way of transferring power without a drive shaft :(. You might want to talk to the person you bought it from, and bring it to their attention.


3

Couple things you might want to check. Coolant temperature sensor. With a cold engine the ecu should try to dump more fuel in for starting. If the sensor isn't working it might send the wrong amount of fuel and inhibit starting. Idle Air Control valve. This going bad could cause similar issues.


3

I wouldn't rule out a bad MAF so quickly - there was a generation of VW and AUDI MAFs that slowly went south without any indication from the ECU that they were doing so and IIRC the ECU managed to compensate for the dying MAF for a while. Also, if the ECU thinks you might be boosting at 15psi and using a conventional gauge suggests you're boost 7psi, you ...


3

This hose is a low pressure one. Your PD type engine only has high pressures inside the valve cover. There is a low-pressure lift pump in the tank, however, which might make a little spritz of a leak when you first remove the hose. You can depressurize the 'low pressure' side of the system by opening the water separator on the bottom of the fuel filter (to ...


3

You can still get oil into the coolant through a head gasket leak, even if you don't have any other symptoms. You symptom of oil into the water is very classic of a head gasket leak. Oil pressure is almost always higher than the water pressure. If it's a small leak, oil can be pushed into coolant galleys, but not the opposite. If you have flushed your ...


2

Sounds like one of two scenarios depending on the design. -58 is the lower limit and happens whenever the sensor has no connection, or a direct connection. The first step is to unplug the sensor and look at the temp if it goes to -58 then you have a loose or open connection somewhere between the sensor and the computer. If when you unplug the sensor it ...


2

The reason the oil light is coming on is because the oil pressure in the engine does fall low enough for the oil pressure switch to trigger. After all, it's a pressure warning light and not an oil level warning light. It's not unknown for these switches to go bad but given that it's accompanied by engine noise, I would very much work on the assumption that ...


2

Check under the rear of the car you should be able to see the rear differential. it is the aluminium finned item between the rear wheels If you don't have on then you definitely don't have a quattro, you should also check the VIN to make sure. The driveshaft it self is kinda hard to see depending on the angle. If your car was sold to you as a quattro ...


2

Here's some notes before we get started to help you see the differences in option packages. Audi A5 The Base does not come standard with iPod or Bluetooth connectivity, but those are easy enough to add as standalone options. The absence of a USB port is much more troubling (to me at least). Instead of spending more money on inter-grading a USB port into ...


2

Try these sites, I have done research on several sites and these two kept coming up and they also have video on youtube to show you how to do it. http://superiorrestoration.com/categories/graphics http://www.classicdyeproducts.com/custom_button_graphics They help me repair my 05 Escalade buttons for my Steering Wheel, A/C Control Unit, and Navigation/Radio ...


2

My guess is that they either fitted brake pads that don't have wear sensors or didn't connect the wear sensors correctly.


2

That isn't mostly rust buildup. That is the edge of the rotor that your pads don't touch. If it feels raised then that just shows you how worn your rotor is. You do not always need to replace rotors with pads, but it looks like you'll be replacing them next time at the latest. I once had a rotor split while driving home from 6 hours away. When it cracked ...


1

If your rotors' wear surfaces are still smooth & flat & true, then keep the rotors and replace the pads alone. The dealer wants to replace the rotors because doing so eliminates one potential source of liability for them - the more they replace, the less their potential liability. If the wear surfaces are NOT still good, then they should be measured ...


1

Replacing rotors or drums every other time you replace the pads/shoes is crazy. For most daily drivers, that would be every year or every 2 years. Unless the vehicle is being used for something like a delivery service (IE, LOTS of miles with TONS and TONS of stops), there is no reason not to expect 50K-100K or even more from a pair of even stock or ...


1

if you engine strugle when is cold and start fine when hot and the car run fine after with no lost of power I will check this few thing like = First check you baterry 12.7 v or above good battery under 12.3 V get a new one . then is very likely your starter motor not turning quick enough . if you car is 10 year old plus I will recomend to check you ...


1

There are three relays located under the ECU, within what should be a water tight ECU housing. Apparently this is a common fault, and the relay contacts will often corrode. One of the relays is for the glow plugs, another relay is for the radiator cooling fan. So it's quite likely that this is the problem.


1

http://www.pioneerelectronics.com/PUSA/Car/AppRadio/AppRadio+3+(SPH-DA210) I have spent a bit of time looking at this head unit, which lets you plug in your iPod/iPhone and also supports Android (you could just buy a cheap Android phone if you don't already have one). Not quite a native Android unit but I think is fairly close to the mark and on it's 3rd ...


1

Check to ensure your phone is paired with your car. If that is good, you could use this type of adapter to attach it directly from your 3.5mm port on your phone to the iPod connector in your glove box.


1

The 50 g/s max flow reading that you are getting is far lower than what merely altitude can explain. The chart above shows that at about 5,200 ft above sea level, the density of air is 83% of what it is at sea level (0.062 lb/cu.ft vs. .075 lb/cu.ft). So to account for the altitude, you should multiply your expected mass flow by 0.83. According to the ...


1

The fault code P0171 descriptor is Bank 1 running weak. The fault code P0174 descriptor is Bank 2 running weak. This means that your engine has too much air or not enough fuel for proper ignition. This can be a faulty MAF sensor as it is common to both banks. It can also mean that you have an air leak between the MAF sensor and the throttle body, a faulty ...


1

Problem solved : sticking valve in turbo After running a solenoid check at the independent mechanics - which toggles the solenoids for as long as you like, I get power and turbo back with a vengeance. This means the problem is with a sticking solenoid in one of the turbo valves - either the wastegate or the diverter valves. The mechanic mentioned as we ...


1

If the engine is accelerating and the transmission is in gear, then the car should accelerate. If not, then you have a transmission problem. I'm not sure about Audi's, but what you describe sounds sort of like your torque converter (if you have one) is slipping under high load. If it is an "automatic manual" (or semi-automatic, depending on your preferred ...



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