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5 votes
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Is it a good idea to switch to 5W-40 engine oil from 5W-30 after hitting 120k miles?

Will changing to the 5w-40 hurt the engine? Most likely not. Should you change to it? I my humble opinion, no. Here's the thing ... the manufacturer has said 5w-30 (assuming that is correct) is the ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

Turbo Failure Modes (VW TDI VNT15)

Is there any way that the vane actuator could be moving and yet not actually moving the vanes, or is it a positive linkage? There is a positive linkage, but it doesn't mean it isn't working right. ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

Troubleshooting Low Turbo Boost

Some thoughts on how to verify if you have... an intake obstruction Disconnect the air filter (keep the MAF in place) to expose the compressor inlet and log boost values with the car at idle and ...
Zaid's user avatar
  • 39.2k
4 votes

Drawbacks/weaknesses of TDI 1.6 engine in VW Golf Mk 7 (2015)

Fundamentally the engine is a pretty robust unit - but something to check thoroughly is whether it as affected by the "Dieselgate" scandal, cars that have had the recall "fix" done have significantly ...
motosubatsu's user avatar
  • 10.3k
4 votes
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Egr valve cleaning (2.0Tdi 2005)

If you take it off of the engine, your best bet is to clean it with carb cleaner. Don't submerge it in anything, as you can cause damage to any diaphragm seals which may be present (if vacuum operated)...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

Remove/Replace engine wiring harness on '02 VW Jetta TDI

I'm biased based on my experience, but perhaps it might be helpful. I spent time in the Army troubleshooting (and teaching mechanics to troubleshoot) vehicle electrical systems. After that job I ...
zipzit's user avatar
  • 6,569
3 votes

2011 tdi clutch noise when clutch is out

You may find that the throw-out bearing is the culprit, based on your description. As you've noted, slight pressure on the pedal causes the bearing to seat in the races, creating quiet. When that ...
fred_dot_u's user avatar
  • 4,755
3 votes
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VW Mk4 TDI (ALH) – Suggestions for Removing Stuck Water Pump

So what ended up working for me was to cut a piece of 1x2 lumber (I couldn't fit a bigger piece from above) about 24" long and I braced it against the pump drive cog and pounded on it with a five ...
dlu's user avatar
  • 14.5k
2 votes

What effect will removing my EGR have?

You might find this post about Dynamic EGR Control for TDIs on the TDI Club forums by Mark at Malone Tuning interesting. Mark reports on his experiments with the EGR system on a 2006 TDI. He reports ...
dlu's user avatar
  • 14.5k
2 votes

What is the cost of general maintenance on VW Jetta TDI (diesel)

For what it might be worth, we have a pair of Jetta Mk4 TDIs one with the ALH engine, the other with a BEW. Both are well over 200,000 miles (the ALH is pushing 300,000) and for the most part we do ...
dlu's user avatar
  • 14.5k
2 votes

Reverse is now 1st gear on manual transmission

Before adjusting linkages, I would inspect your bushings. A missing or damaged bushing might cause this, and they are rather easy to replace. You will have to pull the battery and tray to get to the ...
mongo's user avatar
  • 2,115
2 votes

VW (Bosch) TDI injection pump fuel shut off solenoid functions

My B4 Passat 1996, suddenly, would idle but not respond to the accelerator pedal. It would not go over 5mph before it would quit. Answer: Bad N109 relay that was partially working and supplying a ...
airlenny1's user avatar
2 votes

VW (Bosch) TDI injection pump fuel shut off solenoid functions

Since no one has chimed in, I will at least give it an answer. I don't think that it would. The control unit for the diesel injection can limit fuel through the unit injector solenoids directly. The ...
Steve Oakes's user avatar
  • 1,096
2 votes

Turbo Failure Modes (VW TDI VNT15)

First I would establish actuator movement. The failure of the actuator to move properly is the leading cause of VW turbo failures. With a vacuum pump, such as a Mighty-Vac, or the Harbor Freight ...
mongo's user avatar
  • 2,115
2 votes
Accepted

mk6 Golf - cam shaft sensor wire broken (I think)

If you went to fix this, I think your best bet is to soldier a piece of wire in place between the wires. The connector side is so short, I don't see any other way you'd get it semi-fixed. On the other ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
1 vote

What MK is my golf?

The Volkswagen Golf Mk6 was produced from 2008 to 2013 in Europe and from 2009 to 2014 in the US. Your car is a 6th generation Golf.
user60481's user avatar
  • 1,339
1 vote

Is it a good idea to switch to 5W-40 engine oil from 5W-30 after hitting 120k miles?

Summary: Your engine appears to require the "VW 507 00" oil specification and No 5w-40 oils are on the Audi usa list of approved oils meeting that spec, so I would not recommend using a ...
PjbMit's user avatar
  • 21
1 vote

2002 VW Jetta TDI Starter replacement 4 times

Damaged teeth on the flywheel will damage the starter drive gear. Fix is to replace the flywheel ring gear.
user9181's user avatar
  • 1,392
1 vote

2011 tdi clutch noise when clutch is out

I have seen one of the fingers that the release bearing rides against get partially dislocated, and hit the bearing and arm. Unfortunately, one almost has to pull the tranny to diagnose. One thing ...
mongo's user avatar
  • 2,115
1 vote
Accepted

VW 2015 TDI (EA288) Oil Sensor(s)

The only yellow oil lamp on new VW is for Oil level. It actually have second oil lamp, but it's half red half yellow ( red oil can and yellow circle) and it's for oil pressure. It has 2 states: Lit ...
AsenM's user avatar
  • 1,197
1 vote
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Audi A4 2.0 TDI strange clicking noise

Found the issue, it seems to be the EGR Valve. The rod or lever is lose inside which rattles up and down while air flows through.
SebastianOpperman's user avatar
1 vote
Accepted

Number of diesel injections per revolution

To sort out the confusion here is my analysis: (rpm/2) * (num of cylinders) / 60 The rpm is divided by 2 as it is a 4-stroke engine, divide by 60 for power strokes per second. This gives: (1200/2) ...
Solar Mike's user avatar
  • 34.7k
1 vote

Can I use 15w40 synthetic engine oil in my 2015 vw tdi and how long can you go between oil changes?

Please read the owner's manual for information on the correct oil to use. 15w40 is much thicker than 5w30 or 0w30, and is not typically used on modern cars. Also take note of the grade i.e A5/B5. ...
MIL-SPEC's user avatar
  • 233
1 vote

Can I use 15w40 synthetic engine oil in my 2015 vw tdi and how long can you go between oil changes?

15w40 oil is way too thick for this car. Just stick to the oil that is mentioned in the owners manual, which will probably be 5w30 or 0w30.
MadMarky's user avatar
  • 1,350
1 vote

VW 1.9 TDI after total engine and turbo repair burns oil

You don't really give us much detail of what was done to your engine when it was rebuilt. I have rebuilt quite a few VW diesel engines, and not experienced what you describe. High oil consumption ...
mongo's user avatar
  • 2,115
1 vote

VW 1.9 TDI after total engine and turbo repair burns oil

If your engine is burning 250ml of oil in merely 600km, It'd be EXTREMELY worried, and think that'd be an oil leak rather than literally burning oil. And, yes. In a diesel particularly, you need to be ...
yollooool's user avatar
  • 644
1 vote

What is the cost of general maintenance on VW Jetta TDI (diesel)

I have driven VW diesels since 1976. I currently own four of them. One has 330kmiles, and two are about 276kmiles and one is about 150kmiles. Normally maintenance is less than $0.10/mile (US$). I ...
mongo's user avatar
  • 2,115
1 vote

How often do I need to change my oil in a VW TDI?

If your TDI is a PD type then you're better off erring on the short/fast side. There were many cases of prematurely worn out cams on PDs due to oil. This means sticking to the oil norm and change ...
Andrei Rînea's user avatar
1 vote

Is it normal for the oil to be dark in color right after an "oil change" in a 10-year old diesel car?

Hmm, I've known oil to go black very quickly in older diesels, but not for it to be essentially instant. The higher mileage of yours may be a factor, but unless they did it very quickly without ...
MarkP's user avatar
  • 71

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