Fuel Filter – Latest Revision – 1K0201051K

6.6 Bar Fuel Filter - Part Number 1K0 201 051 K

There is a new revision for the fuel filter with a 6.6 bar pressure regulator versus the older 6.4 bar regulator. Since I was due for one, I purchased one from TheVWPartsStore.com for about 35 shipped. The filter looks no different from the older version except for the 6.6 bar marking. The part number is 1K0 201 051 K.

6.6 Bar Marking - 1K0 201 051 K

The factory interval is around 40,000 miles I believe. The one I changed out had about 20,000 miles on it. When I first changed out my fuel filter, I noticed that a lot of the gas that spilled out was a muddy brown color. This time there was none of that.

Here’s a link to the fuel filter DIY. Excellent instructions. As always, when working with fuel, be careful. Work in an area with good airflow and no sources of ignition.


Auto Union Tuning – Great Indy Shop

I have a strong dislike of dealerships. They’ve managed to give me subpar work or service about half the time I go there. True that 50% of the time it’s correct but that’s too low a percentage. Oil level overfilled when it clearly states “DO NOT OVERFILL”, completely misaligned steering wheel after an alignment, work that was stated to be done but not really…yeah, not fond of dealerships. I’m a DIY kind of guy because I know that the final quality of work will be completely dependent on me and I like things done properly. A “good enough” kind of job will bother me. So for me, finding a good shop to stick with is hard. I always find something wrong or slightly off. Really quite an annoying condition. But enough of the cool stories, today I actually want to recommend (!) a really great shop in the Southern California/Orange County area.

If you recently read my timing belt post, I had the service done at Auto Union Tuning in Huntington Beach. I drove about 50 minutes to get there but goods shops are few around here. Dave was the person I dealt with. Really excellent service and all around nice guy. The shop is a brand new upstart, but Dave and his partner are VW/Audi certified. His buddy is Porsche certified as well, if I recall correctly. It’s a small shop, a two bay garage with a small showroom but clean and fully stocked. My timing belt service only took about 4 hours and that was with repairing a CV boot rip. Pricing is truly competitive and what I would call fair. The timing belt service seems to be something that a lot of shops love overcharging for. I’ve heard quotes go as far as 1000 and up. Ridiculous. They do aftermarket as well as dealership services.

Their website is now fully operational and it looks like they’re having some specials for the grand opening. Please check them out. I am not getting paid for shilling them, good service just deserves something back. Check them out at AUTUNING.COM.

Here’s the shop info: Dave is the one I dealt with as he specializes in Volkswagens

Shop Hours Mon-Sun by Appointment Only

Auto Union Tuning
7542 Warner Avenue Suite 107
Huntington Beach CA 92647

Please E-Mail, Call, or Text to Schedule an Appointment
Raz: (949) 285-3523
Dave: (310) 804-7298

“G” Revision PCV Valve Internals

I opened up my non-functional revision G pcv valve and took a few pictures, enjoy.

Revision G Check Valve - This one is broken

Revision G Diaphragm and Spring

Revision G PCV Internals

Fram CH9911 – Supplier Change

Fram used to supply an OEM equivalent filter (CH9911) that was basically a Fram branded Mann filter. It seems that they have changed over to a cheaper supplier recently and I can no longer recommend these filters. If you do decide to pick up one of the Fram CH9911 filters, open it up and see if it is the German made filter versus the one made in China. The made in China (sometimes Korea) filter has decidedly lower quality construction. Source out either a Mann or Hengst filter. Your local dealer should have plenty of stock as well.

CV Boot Change

My cv boot was also replaced when I did my timing belt a few days ago. It was starting to weep grease right where the clamp was. I got to it right before it got a chance to completely tear and liberate grease all over my suspension. If you see the boot beginning to show signs of failure, it’s best to get it replaced as soon as you realistically can. This way, you can avoid having to replace the whole joint or axle. The remanufactured units are not the same quality and if you can save you original joints and axles, it is the better way to go. If the joint has been driven on without grease, it tends to go bad quickly. Soon it will begin to make noise (most often a clicking noise when turning or backing up) and you’ll have to replace the whole setup. Many shops only replace the whole axle because it’s easier and more profitable. Find a shop that is willing to do just the boot job. It should cost around $200. Parts are cheap but the labor gets you.

Here’s a post with some interesting pictures and a semi-diy.

Timing Belt – Replaced at 101,000 Miles

I got my timing belt done just yesterday. The factory interval is around 105,000 miles in California, maybe even longer. Apart from an irritating squeaking noise when cold, the belt was no worse for wear. Unlike the 1.8T, which was known for destroying timing belts around the 60-80,000 mile range, VW has made the 2.0T much gentler on its timing belt. The timing system has been optimized to reduce stress pulses on the timing belt. It seems to have worked. The mechanic who worked on my car mentioned that everything looked good for the mileage. He also mentioned that he has never seen one go out due to age, yet. There have been a few failures, but I haven’t read about any of them being below 100,000 miles. The rollers / tensioners were also changed out along with the coolant and water pump.

The timing belt isn’t something to mess around with. The 2.0T is an interference design and valve and piston contact will result if the timing belt breaks. The job can be expensive at many dealers and even independent shops so be sure to shop around. I’d recommend a shop that either specializes on Volkswagens or has experience with the 2.0T’s. The procedure is pretty straightforward but it requires removal of parts in the right order so prior knowledge is best.

I don’t drive hard most of the time, just a spirited run once in a while. 2.0T’s running in more spirited settings should probably get them changed around 90,000 miles. I have a lot more faith in the belt after seeing the condition at the shop yesterday.


-Get your timing belt done around 90-100,000 miles, earlier if you inspect the belt and it is starting to look a little tired. I replaced mine at 101,000 miles and it could probably have gone another 10,000.
-Shop around, the best prices are not always the independent shops. If you’re not having it done at the dealer try to find a shop that has worked on this particular engine (2.0T FSI).
ECSTuning.com and DBCPerformance.com both sell excellent part kits if you would rather supply the parts.

Revised OEM PCV and Crankcase Breather Tube

06F129101P Front Detail

In my current quest to return some parts back to OEM spec, I’ve recently purchased the latest revision PCV components.  The latest revision PCV valve is “P” with the part number 06F129101P.  There is also another revision of the rear breather tube, part number 06F103215B.  The valves in the latest revisions seem much stronger compared to my old “G” revision.  The check valves are now spring loaded instead of free moving.  I don’t know when they switched to the spring loaded valves because I completely skipped over the 2 or 3 other revisions.

06F129101P Valve Detail

If you’re wondering why I went back to stock, I wanted to remove the catchcan I’ve been running.  An intake manifold teardown by a forum member  revealed that catch cans do little to aid in preventing the intake valve deposits inherent to direct injection engines.  I have also been thinking about the lack of intake vacuum working on the crankcase.  In the catch can setups, vacuum is sourced from intake air moving over the rear breather tube exit.  I think it is a max of 3″ of mercury according to BSH and this occurs in the higher rpms under boost.  At lower rpms, actual vacuum may be much lower.  Too little flow or stagnant flow through the valve cover may allow the blow-by gasses to start forming deposits.  I’ve noticed a little grime building up around the oil cap area, despite the regular oil changes.  The accumulation of these blow by gasses can contaminate oil and deteriorate it much faster as well.  Another side effect of routing all gasses through the rear breather tube seems to be, ironically, more oil in the charge pipes.  If a recirculation type catch can does not catch all the vapors, the rest end up condensing in charge pipes and intercooler.  The stock system sends them directly to the intake manifold to be burned off.  The way the stock system works, it only reroutes vapors through the charge piping and intercooler under boost.  When I installed my throttle pipe, a good amount of oil came pouring out of the pipes.

06F103215B Check Valve Detail

Now oil vapor in the in the intake charge is detrimental to performance.  This is where a catch can does help.  Oil vapor can effectively reduce the octane level of the intake charge and lead to more knock, which would then decrease performance.  I haven’t noticed a performance difference since I switched back to the stock system but then again, my car isn’t exactly a horsepower monster.  It is a compromise situation but after many miles of thought, I’d rather have the stock system deal with the evacuation of the crankcase gasses.  The stock pcv system flows a lot and I don’t think some of the catch cans flow enough.

06F129101P Rear Detail

The stock pcv valves have not been models of reliability, which is one of the reasons catch catch cans have sold so well. Modified and stock cars alike can blow through them.  These newer parts are now several revisions deep and they seem to be much more robust pieces.  The rear check valve in the breather tube looks much better.  The front pcv check valves have a more positive engagement compared to the “G” revision I compared it to.  I guess only time will tell!