seyser
Well-known member
I replaced this sensor last week. Everything can easily be done from the bottom after removing the EGR canister.
There may be a connection with the latest ECU software update since regens are happening often.Mine has apparently failed at 25,700 miles. The 0544 code showed up on my P3 gauge, CEL is on, and a flashing glowplug indicator. I'm taking it to the dealer tomorrow morning.
What is troubling is the failure at this low mileage. I don't make lots of short in town trips - I have a gas vehicle I use for that. Can there be any connection to the last software update? It seems since that the regen cycles are more frequent and mileage is down slightly. A regen indicator should have been included but I watch the EGT to avoid shutting it off during a cycle.
I'm very unhappy to see this happen so early.
My car worked perfectly for 3 years 90,000 miles and then from that point to 150,000 miles I have replaces 5 tempt sensors. There are 3 different sensors, and I have replaces the orange plug 3 times and the black plug twice. This happened before the regen update happened.Mine has apparently failed at 25,700 miles. The 0544 code showed up on my P3 gauge, CEL is on, and a flashing glowplug indicator. I'm taking it to the dealer tomorrow morning.
What is troubling is the failure at this low mileage. I don't make lots of short in town trips - I have a gas vehicle I use for that. Can there be any connection to the last software update? It seems since that the regen cycles are more frequent and mileage is down slightly. A regen indicator should have been included but I watch the EGT to avoid shutting it off during a cycle.
I'm very unhappy to see this happen so early.
I won't do it. If something goes wrong before now and the time they announce whats going to happen I will not dish out any money.I hope i don't have to replace anymore sensors between now and the supposed buy back.
I'll use my $500 VW card if it's mission critical. Otherwise, I like you am waiting to see what the final decision is on july 21st.I won't do it. If something goes wrong before now and the time they announce whats going to happen I will not dish out any money.
If the verdict comes back saying that they are going to buy cars back then if need be because of mechanical failure I will park it and drive something else.
As long as its still safe to drive of course, but I have decided to not spend any more money on this car.
Probably just age... the ceramic just gets brittle and I can confirm, my 190k mile car dropped the same plug as well. It's nice that it's an easy fix for "some". I'd hate to have to contend with parts blocking my reach.I had been running the Stage 3.5++ tune for about 25,000 miles with the sensors swapped. I started to feel uneasy about bypassing the EGT limiter so I swapped the sensors back...low and behold my EGT 1 was toast. Just installed a new one about two hours ago and swapped the plugs back to the normal position. All is well again, except now the car pulls fuel back a little sooner because of hitting the EGT limiter at high rpms. The job took me about 20 minutes doing it from the bottom, but I don't have a DPF or EGR canister to contend with. Car has 177,000 miles on it, and I'm wondering if the EGT sensor went because of age, or the added heat of bypassing the limiter with the swap. I may never know...
Thank you for this post, I have in skinny arms and longer fingers so I was able to use the tool I ordered from snapon and get the sensor out from the top on my 2010 Jetta Sedan TDI. I cut the wire at a few places to remove it easily. I put the new sensor from the top and tightened from top and had to get under the car to route the wire and zip tie it from the bottom like it was done originally. I used the tool and small extension and the regular 3/8 ratchet for the job. Took 2.5hrs in total. Cleared the error, set the car to perform DPF regen while driving and went for 20 min ride on the highway. The DPF light went out once regen was done and the g235 error never came back. I didn't have to open any cover at the bottom and didn't have to use hanger wire (skinny arms and long fingers)Hello all, Here is a simple guide to help replace your G235 Temp sensor, Bank one. It is a 2-3 hour job at home, on ramps and you will need the special tool, (VW #T40055 or Snap On #FRXM-17) mentioned above.
I recieved a flashing Glow Plug and a P0544 code.
VCDS will tell you G235 and which Bank is faulty.
The Part number for my VIN was 03L-906-088L.
This is the sensor with the Black Connector, which is easy to locate the connector portion. Your G235 Connector is the black one, below the Orange Connector.
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The threaded portion of the sensor is just below the Turbo, threaded into the Exhaust Manifold. Not a very friendly location!! (Item#37)
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I didn't have time to wait for the special tool, (VW #T40055 or Snap On #FRXM-17) so I simply modified a 17mm deep 3/8" drive impact socket. You can do this with an angle grinder and cut off disc.
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Here's the new sensor and it works best with a flex head ratchet and 6" extension.
The easiest access is from above, once you locate it!!! You still have to remove the belly pan and access the bottom to route the wires properly.
.Here are some basic steps:
- safely raise car and remove belly pan.
- locate the black connector and simply pull it out of its steel attacment firewall clip. Typical VW connector, squeeze the tab inwards with your thumb, while compressing the two connectors together. This easily releases the connection. Do not use screwdrivers to pry or lift tabs!!
- gently unfasten the loom and unclip the plastic and steel holders.
- pay attention to the routing from under the car!!
I removed this cover (17mm wrench) to help see the wire routing:
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- fully seat the socket and remove sensor from above.
- coat the threads of the new sensor with high temp thread anti-seize. Do not get any on the sensor tip. Avoid touching the tip, similar to the cautions you use with headlight bulbs!!
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I struggled to get the sensor in from the top. I made up this Push Stick from a coat hanger to guide and insert the sensor from the bottom:
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Make it about 12" long!
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Up she goes!!
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- Tighten the sensor from above, ensuring the angled tube is not touching the oil line. Official Torque is 45 Nm or 33 foot pounds.
**you have to re-index the socket every 1/3 turn, so the angled tube doesn't contact the socket body!!!**
- carefully re-route the wire, replace the zip tie and clips.
- insert the connectors and test pull apart to make sure they are locked.
Make sure the wire can not contact the EGR filter or DPF.
- reinstall the plastic driveshaft shield and belly pan..
Avoid prolonging changing this sensor. While it is faulty, no regens will happen. I left mine for about 250 miles, to be rewarded with a DPF light. Thankfully, after about 50 miles, the DPF light went out!!
Here is more information and a great site!!:
http://volkswagen.workshop-manuals.com/golf-mk6/index.php?id=5185 .
Hope this helps,
Please feel free to add any more tips!
All the best,
Andrew