2004 Volkswagen Jetta



January, 22, 2010 AT 7:41 PM

2004 Volkswagen Jetta 4 cyl Two Wheel Drive Automatic 55,000 miles

diagnostic code comes up as camshaft positioning sensor and another for oxygen sensor.
I ordered a camshaft positioning sensor and there aren't any mechanics that can find where this particular part goes.
doing research I found that in 2004 there were three different engines made for the same car. I think I may have engine BBW(2.0engine). I still don't know where this part goes.
Then I ordered a hall sensor/camshaft sensor and still have no clue where this piece goes. Before I ordered this part I went to the VW dealship parts department to order the correct part. The tech there said that my car does not have a camshaft positioning sensor.(This is weird because the diagnostic showed a problem with it) Then all of a sudden he said there is although it is called a hall sensor.

so now I have two types of camshaft/hall sensors and have no clue where or how to replace it. Would anyone be able to tell me where it is located by using pictures and how to replace them?


5 Answers



January, 22, 2010 AT 7:54 PM

Hi. And great job on the research. The hall effect sensor is located inside your distributor. I don, t have pics for you but pretty simple to change once you find it.

Now I am sorry to be the bourdon of bad news, but just because you have a code does not mean the sensor is bad, just that the computer cannot get info from that sensor. This could be a sensor we use parimeters and ranges and ohms readings to determine if the prob is the sensor or something else like the wireing. Or timeing belt.

It is always better to have a skilled driveability technician, atleast diagnosed. Otherwise you may get stuck with a bunch of non returnable sensors you don, t need.

I hope this helps you please vote. Ty billymac



January, 22, 2010 AT 8:48 PM

Thanks for the reply billymac!

I have had the car checked by four professional mechanics. One of the codes that come up is

camshaft pos actuator
A- bank 1 timing over advanced

catalytic efficiency below threshold(bank1)

So it must be the sensor since all the service stations say that my car will fail New York State inspection. They all show the same code.
Now I have the oxygen sensors (which also need to be replaced and are easy to find)and two different types of camshaft/hall sensors and I still have no clue where it is located in a BBW ENGINE code. Would you happen to have a diagram of a BBW engine for my 2004 VW Jetta.



January, 22, 2010 AT 10:08 PM

No I am sorry I have no pics for you. However if you will repost and put attention moderator maybe they can help you. And yes I wasn, t aware you had been to 4 techs.



March, 30, 2010 AT 12:09 AM

The BBW engine does NOT have a distributor. The camshaft position sensor is located at the end of the cylinder head opposite the timing gear. All other 2.0 engines of that year have a cam sensor located behind the timing gear. The part that has a metal piece attached to it with a long wire tied to it is NOT the sensor for the BBW engine. The correct part is a grey sensor with a 3-wire connector and a single allen head bolt holding it in. The part number that is printed on it reads " 06A 907 601". It is very simple to replace provided you have METRIC allen wrenches. Just remove the 3-wire connector, remove the bolt, wiggle the sensor out, put a little engine oil on the new O-ring, and install the new part in reverse order. Hope that helps.



October, 13, 2012 AT 4:54 PM

Gentlemen I have a 2004 Jetta with the infamous BBW with the variable valve timing. I blew a timing belt at 100,000 and needed some valves. Slapped it together and went on my merry way. I started getting a noise on two lifters at idle. 10,000 MILES later I had to pull the cam at a whopping 1200 dollars us from the dealer. 1500 miles later I still had a little clack. I bought new lifters and still had a clack. I checked oil pressure at the front of the head next to the thermostat and had 25psi at idle and 70 at 2500rpm. Pulled the cam again and opened both sides of the oil gally on the head and blew out the oil. Then I pushed a wooden 5/16 dowel from the driver side to the passenger side to push the screen out and check it. Clean. The oil comes up through the head via the second foreward head bolt hole driver side and enters the main galley. Then it goes foreward to the veriable valve timing solenoid, oiling the lifters and cam along the way. The solenoid valve has the oil enter the front and three oil holes at different depths and angles. The coil part of this solenoid is alighned by a flange and screw. But the valve part can be rotated by hand and missalighn the oil holes. Thease fools at vw diddnt set a lock on the valve or mention something in the book about this and my valve was rotated to a position where all my oil went into the sump. 1600 dollars later and lots of bloody nuckles and I'm back on the road. The only way to truly alighn this stupid thing is to pull the cam and take a toothpick and push it in the oil passage of the foreward cam bearing. Then rotate the valve untill the oil hole alighns with the barrel of the valve. Then take a pair of pliers and hold the barrel while alighning the coil flange screw hole. So much for german engineering.

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