My 2016 has a ticking sound at startup as well. I never can tell whether it’s normal or the timing chain or something. I will be changing my oil soon with the Mobil 1 ESP and I will see if that makes any difference. Right now I am at close to 7k miles.

 

Let me know when you make the change I’m just curious if it resolves your issue as well. I still haven’t had a single instance of noise since I made the change. I’m now switching everything over to Mobile 1 products as I’m a believer.


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The timing chain noise is more like a rattle not a consistent tapping or ticking sound. It also doesn’t last as long as the timing chain noise. Mine does the ticking for about 2-3 minutes normally in the mornings. It’s completely gone now just not sure what could be that much different in the two synthetic oils? Guess it doesn’t matter though as long as it works. So you only have 7k on your TDI?


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Was your original oil's viscosity the same as the new one's? Is it what VW calls for in your particular engine and climatic condition?

 

Yes sir both 10W/30


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I've been using Mobil 1 ESP 10w30 on my mk4 Golf 1.9 PD tdi for the past 20,000 miles without an issue. It should have a 506 01 spec oil as it is at risk of cam failure like the V10.

Have used Mobil 1 almost exclusively for decades. It has never let me down.

 

The thing that really gets me is this is now the second vehicle Mobile 1 has helped. The 2000 F150 I had did the same thing but back then I was using just conventional Motor Craft oil. I switched to Mobile 1 synthetic and it was almost totally gone. On occasion I could barely hear a tapping sound for 1 to 2 seconds vs being loud for 1-2 minutes so made a huge difference. It’s almost like components are still lubricated a lot better after the engine is sitting for a few hours or after several days.


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My 2002 Golf has over 200,000 miles and now runs better than when I bought it, thanks to Mobil1.

Being a PD (ATD) engine it should have 506 01 spec oil to protect the cam lobes just like what the V10 tdi calls for. But the previous owner certainly didnt opt for 506 01 and I haven't either. A conservative estimate would be approx 30,000 to 50,000 miles it has run without 506 01.

I didn't mind risking it in the Golf as it was only £400 to buy. Don't think I will use it in the Treg though as I wouldn't sleep at night wondering about potential camshaft failure.

My 100,000 mile service on the Treg is due soon and will be opting for 506 01 oil for a longlife service along with 20% Lucas oil stabilizer, fully synthetic to keep everything coated between starts.

I also used Mobil1 for 20,000 miles in my Bora/Jetta with a 1.9 ALH engine with the same filter. Again, no issues whatsoever for the lifetime of the engine and the oil wasn't thick when I finally drained it.

I bought the Jetta new in 2001 and put at least 40,000 or more hassle free miles on after that oil change. In fact, the drive train was the only thing still working as new when I changed after 11 years of ownership to a B6 Passat wagon.

Mobil1 works miracles.

 

The Mobil 1 ESP is spec for 506 and 507 VW. Should be no issues there. I will let you know when I change my oil if it makes any difference. Yea my TDI has really low miles on it. Kindof cra6 that it’s still under 10k and it’s 4 years old. Almost 5 from manufacturing date.

 

As per the below pics, Mobil1 ESP 0w30 and 5w30 are 504 and 507 spec. From other threads on here, the 507 spec does not supercede 506 01 for the PD engines.

It isn't the correct spec for the PD engines. But it seems to work just fine.

 

The dealer, in Romania, now uses Mobil1 0W30 and they say its the new standard. I kept using Liqui Moly 5W30 LL.

 

That’s good to hear. Mobil 1 is a good company. They even answered some questions I had about their oil in a timely professional manner.

 

Yeah when I called to confirm the spec and application of Mobile 1 esp guy actually answered the phone and spoke “real” English. I almost passed out. Lol. Technical support is top notch.


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Yea it’s nice to see they are sinking some of their profits into taking care of the customers. Harder and harder to find these days.

 

I changed the oil a few months ago on the Touareg with M1 ESP, no dif in the start up noise.

 

Did you have the bad valve tapping noise at startup? My other Tregs did not but I also wasn’t using a Eneos oil.
This is the oil I was using before. I consider it garbage now.

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Had it before and after M1.

 

Strange. Maybe mine will come back but hope not. So far so good.


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Only Motul for mine.

 

My Treg (13) has had the same issue as yours it started doing the chain rattle on warm start ups (after sitting for 30 mins or more) at around 65k miles and at 83k miles it has started to do the ticking thing as well for the first few mins.

Will try out M1 ESP this oil change next week, I've previously used valvoline synpower at half the price. Although it sounds more like a tappet/lifter thing, someone said it could be a ****ty exhaust gasket that seals itself once it warms up as well. Either way, no harm in trying I suppose. I could only find M1 ESP 5w-30 down here in Australia though - no 10W - which I imagine makes a big difference with cold start problems... you still get the chain rattle even with 10w though hey? That rattle has been a bigger concern for me.. although it doesn't seem to get worse at all. Pretty sure it's the cam chain tensioner that attracted a lawsuit somewherein the world.

 

Yeah I still get the chain rattle sometimes but not at every cold start. Ticking sound at startup is totally gone now. Very strange and still don’t understand how changing oil (same viscosity) could effect it but glad it did. My ticking sound started over a year ago now and hasn’t happened since going to the Mobile One ESP. Good luck.


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I asked a local VW tech guru about the start-up rattle and brief ticking sound. His answer was that the timing chain tensioner took a couple of seconds to pressure up, causing the rattle. The brief ticking, he said was caused by the DEF injector. According to him, neither sound is a worry. He and his wife both drive T'reg TDI's and he has a stellar reputation. I'm inclined to believe him. He uses Total Quartz Ineo for his oil changes. Rated 504/507.

 

The only issue with the injector concept is that it only functions during regen so not sure why it would be making a noise when not in use. As for the timing chain I could see that being true.


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The only issue with the injector concept is that it only functions during regen so not sure why it would be making a noise when not in use. As for the timing chain I could see that being true.


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I'm pretty sure that DEF is injected regularly, not just in the regen cycle. If that was true, then my vehicle must be regening full time when I'm towing. lol I'm happy to be proved wrong, though!

 

Cayenne Diesel Timing Chain Noise - Rennlist - Porsche Discussion Forums

Cayenne 958 - 2011-2018 - Cayenne Diesel Timing Chain Noise - I have about 68K on my CD and I've noticed when I start it after it's sat for some time (the car needs to be up to temp and then shut off for 30-60 minutes or so) I experience a really horrible timing chain rattle for about a second...

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Check out post number 19 and 20 by a bloke called HGR - has some interesting takes and quite the write up on the chain rattle and the DEF regen process in our 3.0 TDI's. He got Porsche Germany to write him a letter about it. Although my cold tick is in rhythm with my RPM, dunno if it was the same for you.

With regards to the chain rattle, Audi put out an official repair article in 2016 for the same TDI 3.0 engine I believe? TPI 2035906/10 . The official cause mentioned in the article is too slow a buildup of oil pressure in the tensioner that then doesn't work as designed. Recommended repair is a software update of the ECU and if that doesn't work, the replacement of the tensioner(which was the solution for a forum member here) All "old" chain tensioners replaced with a new one: 059 109 467 AL. I am unsure if a software update exists for the T-reg that resolves this issue, I doubt it.

I don't know if not replacing the tensioner will lead to any real damage, Was thinking of giving this a try. Startup noise cure? Would an Oil Accumulator work on our tregs for chain oil pressure for startup? 150 installing a chain-prelube beats a 5k+ dissection to get to the cam chain tensioners.