Oxygen sensors

Asked by Jul 29, 2012 at 03:27 PM about the 2003 Volkswagen Beetle GLS 2.0L

Question type: Maintenance & Repair

Hi, I brought a 2003 Beetle about 6 weeks ago, the engine management light came on about 3 weeks ago so i took it to a garage who said i needed 2 new Oxygen sensors. I took it to a mechanic i knew who tested the emissions and said it wasnt the Oxygen sensors and turned the warning light off. Since then the engine is making a ticking noise and when i go over 60 miles an hour the steering column feels like it is vibrating. also it makes a squeaking noise sometimes when i push down the clutch. The engine management light has now come back on. Is all of this because my oxygen sensors do need changing or do you think something else is going on? Thanks.

6 Answers

232,205

Your going to have to have the codes read again to see what is going on. The ticking might be an exhaust leak causing the O2 sensors detecting it and turning on the Engine Managment light. The vibration and squeaking noise can be something totally different.

1 out of 1 people think this is helpful.

Thanks for this, the codes that came up were that the O2 sensors needed changing.

232,205

Then again the ticking might be part of the clutch issue. It does sound that the second mechanic didn't really want to diagnose your issue since they just cleared the codes. I would replace one sensor at a time though, usually it is only one that fails, but mechanics like replacing both figuring the next one is waiting to fail.

2,505

I can never stress enough the importance of finding some one competent that knows how to use a scan tool.All the trouble codes do is point you in a general direction,as somebody else stated the ticking noise could be an exhaust leak,which can cause the o2 sensors to set a code.You need to network and find a competent shop that specializes in VW.For whatever the reason a lot of shops will not work on them or can not be bothered,and there are several different o2 sensor codes that can be set,so you need a shop that can interpret the information the scan tool gives for the proper repair to be done

60

i bought about 2 weeks ago a 2003 vw beetle and after 3 days a light in the dash came on took it to auto zone and they did the oxygen sensor thing and the code came up as P0420 so i got 2 oxygen sensors and dont know where they go can you help

6 out of 6 people think this is helpful.
2,505

As somebody else answered if there is an exhaust leak,which is a good possibility,as there is a flex section in the front pipe,and they do go bad,the exhaust leak can dilute the exhaust stream and give a false code,to determine if the u2 sensors are working correctly a scan tool needs to be used and the operation of the o2 sensor monitored on the scan tool.A P0420 code is for catalyst efficiency,you did not state what the mileage is but VW did have an extended warranty on the catalysts for ten years or 100.000 miles,You will need to find somebody competent to help you with the care of your VW,they are a little bit of a quirky car and not all mechanics like working on them.Word of mouth is the best way to find a good VW guy,if you have friends that own v dubs ask them who they use and if they do a good job. What you are experiencing is not out of the normal,and I brought up the extended warranty because that flex is a part of the front exhaust pipe/ catalyst assembly,you have nothing to lose by giving your closest VW dealer a call with your car VIN and just see if it's covered or not,hope this helps you out.

3 out of 3 people think this is helpful.

Your Answer

Add photo

Related Questions

Beetle

Looking for a Used Beetle in your area?

CarGurus has 8,564 nationwide Beetle listings starting at $1,500.

ZIP:

Search Volkswagen Beetle Questions

Volkswagen Beetle Experts

#1 tenspeed
tenspeed
Reputation 1,630
#2 Chris Billings
Chris Billings
Reputation 1,470
#3 Tom Demyan
Tom Demyan
Reputation 1,180
View All

Related Models For Sale

Used MINI Cooper
210 Great Deals out of 10,944 listings starting at $2,600
Used Volkswagen Jetta
358 Great Deals out of 36,520 listings starting at $995
Used Jeep Wrangler
271 Great Deals out of 18,549 listings starting at $2,995
Used Ford Mustang
378 Great Deals out of 46,805 listings starting at $1,500
Used Honda Civic
485 Great Deals out of 87,487 listings starting at $1,499
Used Volkswagen Golf
29 Great Deals out of 2,537 listings starting at $1,850
Used Honda Accord
709 Great Deals out of 86,724 listings starting at $699
Used Chevrolet Camaro
161 Great Deals out of 32,678 listings starting at $1,995
Used Volkswagen GTI
76 Great Deals out of 6,158 listings starting at $2,000
Used Toyota Corolla
667 Great Deals out of 71,669 listings starting at $1,950
Used Volkswagen Passat
219 Great Deals out of 22,472 listings starting at $900
Used BMW 3 Series
948 Great Deals out of 33,268 listings starting at $1,000

Used Cars For Sale

2017 Volkswagen Beetle For Sale
2,509 listings starting at $15,377
2016 Volkswagen Beetle For Sale
11 Great Deals out of 495 listings starting at $11,988
2015 Volkswagen Beetle For Sale
30 Great Deals out of 1,045 listings starting at $9,977
2014 Volkswagen Beetle For Sale
26 Great Deals out of 723 listings starting at $7,995
2013 Volkswagen Beetle For Sale
27 Great Deals out of 811 listings starting at $7,495