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CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

dialhforhero posted:

So uh...

I want that GDI. When it come?

Unfortunately given the Covid poo poo, I'd say 2-3 years.

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CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
We picked up a '13 Passat TDI SE with DSG with like 199k miles, its in decent shape but I suspect the AC compressor is failing, high pressure on low side and takes forever to get cold. Also needs rear wheel bearings, easy fix, but shifts and accelerates well.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

dialhforhero posted:

Well you know the engine has another 300k on it anyway 😀

Yeah, the motor will last a long time, and DSG clutch packs are fairly straightforward to do.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

meatpimp posted:

With that kind of mileage in that short of time, I'd think it saw almost entirely freeway miles, so the clutch packs should have a good chance of a lot of life left?

Yup, per TDIclub, theres a lot of people with 200k+ having zero issues with the clutchpacks.

Going to do the DSG fluid and filter anyways just to be safe.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
'13 TDI Passat progress:
DSG Service done
New AC compressor valve
Oil done

Next month:
Rear struts, tires all around, and timing belt kit.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

BraveUlysses posted:

is there any particularly better version of the DSG service kit from any of these online vendors who sell them

Pentosin sells a fluid/filter kit:

https://www.rockauto.com/en/moreinfo.php?pk=7668792&cc=1505288&jsn=2219

That's what I used.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
JUST make sure you get the APR/Neuspeed flash rolled back to OEM before you go back to the dealer, or they'll get suspicious and will take any chance to not have to honor warranty

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

flightless greeb posted:

From my understanding even if you roll it back they can sometimes still tell and flag the car TD1. That's why you do a power module which doesn't flash the ECU or the APR+ which covers the power train where Audi/VW would deny claims.

Yes, they can. But often if the flash looks OEM they'll ignore it. There's a flag that gets set after an aftermarket flash that you cannot reset.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

big crush on Chad OMG posted:

My understanding is that flag is the dreaded TD1. They can also see the number of times the ECU has been flashed.

Yup, our local dealer doesn't care as long as the flash is OEM at the time of warranty work, but other dealers are not so forgiving.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

nitsuga posted:

Yeah, I asked about a flywheel, and boy those are a pretty penny at $800 or so. I’m pretty sure it’s dual mass, so not really something that can be machined I hear. I’m gonna talk to an independent VW shop about it too, but I’m curious if you’d still opt for it. Dealer said I could probably forgo the both really, but they understand there are benefits to replacing the clutch, pressure plate, and throw out bearing. The flywheel not so much in their opinion.

There may be a VW OEM Single Mass you could request in place of the OEM Dual Mass.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

dialhforhero posted:

I think because a diesel engine is a much hardier engine, since diesel is a more powerful fuel. Also diesel engine combustion is a more efficient combustion. This is why they typically have more torque and also last longer. This is why they are better for towing.

Diesel has more joules per gram yes, but its also because diesel peak torque is generally very low on the rev range and peaks before HP does. So you can take a trailer from zero without much engine effort, for instance the 3.0l TDI in my Q7, the peak torque is 1,200 rpms. Basically just off idle.

The engines are also generally overbuilt too. And yes, fuel efficiency wise, Diesels are extremely efficient at converting fuel to mechanical energy up to 50% of the fuel gets turned into mechanical force. Gas Direct Injection is closing this gap, but under heavy load diesel can generally hold the advantage in fuel efficiency.

He's not wrong. The fuel does contain more energy, the motors are overbuilt for the higher compression, and they do tend to readily outlast gasoline motors of the same era.

VelociBacon posted:

How do diesel trucks deal with that problem? Honest question.

When properly tuned, diesel engines exhaust cools RAPIDLY versus gasoline exhaust. Granted: The instantaneous temperature at the exhaust header inlet is very high like gasoline, but it drops rapidly unlike gas motors. Most of the heat gets re-absorbed into the combustion cycle, its part of why diesel cars need turbos specifically built for them to scavenge as much heat/gas energy as it can from the rapidly cooling exhaust.

As a Diesel nutcase and VW/Audi Diesel guy: TDIs can tow fine, something like a boat won't be terrible IF you have a good trailer. A lot of the heavier trailers mess with the VW/Audi Automatic gear ratios/shift points on the 6 speed autos, I think they fixed it with the 8 speed autos. If you intend to tow anything heavier than a small boat/trailer, you need something like a Q5/Q7/Atlas/Touareg which has the curb weight and brakes to handle it. I had to tow in Sport mode on the Q7 because it kept trying to shift too early in D even when it knew a trailer was attached, and would lug the engine.

CommieGIR fucked around with this message at 20:58 on Jun 7, 2020

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

Kivi posted:

You'll probably want to use lower gear in either fueled car as low RPMs and high load are hell of a load on the gearbox and clutch/tc. Gas cars usually use dinkier clutch / dual mass / other fuckery than (passanger) diesels which are designed for low torque.

I used to tow a lot with diesel passenger cars and I usually just drove in a gear that resulted revs near mid level. The MPG is going to be poo poo anyway so why not save the drivetrain. You'll end up with red hot turbo, but they're designed to transfer the heat as soon as the load lessens.

That's basically what Sport mode does anyways, just holds the gear longer, and doesn't poo poo into final gear as quickly.

Still got like 18/gallon.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Just did my first DSG oil change. Odd design, but man does it move

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

flightless greeb posted:

You all should have bought sportwagens instead of tiguans and I'm mad that you didn't!!!

We looked at a Tiguan and it was actually incredibly spartan which was shocking. We ended up going with a Passat SE TDI insted.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

fknlo posted:

How have the common rail diesels held up? Anything major besides the HPFP grenading when it gets bad fuel? Any issues from the VW emissions redo? I'm probably going to be making a 700 mile each way trip to see someone pretty regularly and while my M3 just soaks up the miles I'd rather not put those miles on it. I had a 13 Golf TDI for 4 years and around 90k miles so I have experience with the cars.

The only complaints I've heard or seen is from the NOx sensors wearing out faster than expected post fix.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

fknlo posted:

That's going to be covered under the extended warranty though, correct?

I'd prefer another Golf or a sportwagen but the prices on Jetta's and Passat's are way lower for cars with similar mileage.

Yup, that's covered.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

KYOON GRIFFEY JR posted:

The EA113 has one of the goofiest timing designs in world history, in that there's a belt that goes from the crank to the (exhaust? one of them) cam, and a chain that goes from the intake cam to the exhaust cam.

That's hardly new, that's how the original 20vs (3B/7A/AAN) did it too: Timing belt from crank to water pump/exhaust cam, and chain between the exhaust and intake cams.

CommieGIR fucked around with this message at 21:10 on Feb 1, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

VelociBacon posted:

Doesn't my FSI do this also?

Probably, they moved the chain from the front to the rear, and now the chain has a oil pressure driven tensioner on it.



The 5 cylinders, at least the originals, only got tension from the cam spacing, that's all.

The 3 lobed thing on the left is the High Pressure Fuel Pump cam lobe, the right is the Variable Valve mechanism.


5 Cylinder cam chain.

CommieGIR fucked around with this message at 21:13 on Feb 1, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

KYOON GRIFFEY JR posted:

its still goofy as poo poo

it was cheaper than setting up a full chain system, and is reliable, sometimes goofy works perfectly. Considering the sheer amount of teething issues VAG has had with full chain systems, I'll keep it.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

KYOON GRIFFEY JR posted:

somehow most other OEMs seem to have managed to do chains correctly and if you want cheap, belts are right there and work well too!

:shrug: They made damned good engines with the setup, so....alright then? There's 5 cylinders with the setup putting out 1000+ HP.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

VelociBacon posted:

How long should a clutch last in a mk5 GTI? Going on 140k kms (85k miles?) and it feels the same as when I got the vehicle at 30k kms. Car has been tracked a few times and generally driven pretty aggressively but with mechanical sympathy.

Honestly, really down to how much excess clutch slip you are doing. Otherwise, I wouldn't be surprised if its still going at 180k.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

VelociBacon posted:

I guess that's where I'm surprised because I do use it for deceleration as well with a little slip.

How similar of a process is the changing of a clutch/TO bearing/slave cylinder/etc to a RWD job? I have no ability to conceptualize the inside of a FWD transmission.

Main difference is needing an engine brace(goes over the top of the engine bay and just hold the engine while you remove the transmission since the transmission on most FWD is part of the engine support mounts)

Honestly, its not that bad.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

shame on an IGA posted:

Golfs have tachs now? When did that start?

The GTI have had Tachs since the 80s, and honestly I cannot recall a single Golf that DIDN'T have a tach when I got in.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

antisodachrist posted:

I had an 83 Rabbit that had a 4 speed manual with no tach. Just a clock in its place. It had a shift light that burned out within about a year of me driving it.

Yeah, the Rabbits did that, I had a Jetta 1.6D that did the same thing. But I think they stopped doing that late 80s.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

movax posted:

I'm assuming our engines are sophisticated / well-built enough to have bleeder valves / make the process of bleeding air from the coolant system easier?

I'm up and running now, but I hear gurgling and signs that my coolant is probably riddled with air pockets. I want to find whatever the gently caress drain hose to dump it all out, and then mix in my new G13 / distilled mix, and then bleed out all the air. It seems like if there is a bleeder valve, that'll make this a bit easier than the usual methods on the Googles of leaving the cap off and topping off as the engine heats up.

Though -- pretty sure the expansion tank is the highest point in the system for an A4, so... all the air should end up here anyways, right?

Also I'm like 95% sure but figure I'll check -- G12 and G13 are fully mixable right?

Depends. I know on some of the blocks the recommendation when refilling the system is to disconnect the upper coolant hose and fill the block first then fill the rest of the cooling system to help eliminate air pockets.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

movax posted:

Thanks dudes. I got that spill-proof funnel kit and will embark on my bleeding / draining adventure once it comes in. How long should it take? People talk about running for a hour which seems... excessive.

Get it warm, squeeze the hoses with the coolant tank open and watch for bubbles. Once its at operating temp and you are getting no more big bubbles, you are good.

CommieGIR fucked around with this message at 16:24 on Mar 2, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Always get VWs inspected. Seen too many of them done wrong by crappy mechanics

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

dialhforhero posted:

What are your opinions on VW dealer mechanics?

I am always so conflicted as where to go and I don’t even know where to start.

I realize the naïveté in saying this but I would like to believe it is bad marketing to have lovely dealer mechanics since I would think dealer mechanics get most of the repair business as it is.

Dealerships are hit or miss, I've run into one or two good ones only to have to take cars back to the dealership repeatedly to get the same thing fixed because they misdiagnosed and replaced the wrong part (even after I told them exactly what to replace).

Its a safer bet to find a local VW/Audi/Porsche specialist shop if you can.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

teh_Broseph posted:

More on shifting chat, I'm about 3k miles into a Mk7.5 GTI and feel OPs pain on having trouble - nailing that butter smooth as an automatic shift is still an enigma for me and whatever moves I try out are inconsistent. I can get a consistent smooth 1>2 shift from a red light by something like: Green light, ease off clutch while easing on gas, at about 2200rpm push in clutch pedal and shift, watch the Prius in front of me cruise away while I'm coasting at 15mph waiting for the tach to drop, moderate pace release clutch starting at ~1500rpm and gently ease gas pedal, everything settles now I can continue accelerating.

Shifting early is easier to be smooth but car speed is grandma paced, shifting where it feels natural from other cars around 3200 I can inconsistently get pretty smooth now but have to watch the tach like a hawk and the sensitive gas pedal still makes it tough to keep steady inertia (like avoiding jerks from suddenly speeding up or slowing down instead of jerks from the transmission clunking in), or get into high rev range and it's a little easier again but then have to deal with the weird pacing of basically revving out 1st gear then switching to 3rd to cruise to the next red light.

Someone asked about video of the rev hang I think? Found this on youtube: https://www.youtube.com/watch?v=gBmscbuNOwg&t=289s
Compared to an old Miata: https://www.youtube.com/watch?v=IgmrzUAkeVI&t=113s

The Golf you can see the person is in the next gear before the tach moves, on the Miata soon as their hand is moving the shifter the tach is dropping. I blame that for most of my trouble; sometimes on a shift the needle will pause then steadily drop, sometimes hold then fall fast, sometimes immediately it'll fall fast, all depending on a few factors with 1st>2nd usually being the worst. I hear getting a tune they can delete the hang and I was planning on waiting for warranty to be out to do that, but gyah it's getting tempting to just go ahead with the APR+ hopefully-they-cover-any-warrany-issues tune and get 4 more years of better shifting and HPs out of the car.

Okay, so I'm seeing this around a lot an apparently its related to how the ECU treats throttle and people call it "Rev hang".
Seems like people are saying you can code it out with VCDS or OBDEleven:

https://www.vwvortex.com/threads/throttle-mod-direct-acceleration-tweak.8988673/

Take it with a grain of salt, of course. Another option people are suggesting is ensure you hit 3k + RPM before shifting and it doesn't hang.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Its a Manumatic: Manual Gearbox, with two separate shafts that can be shifted independently.

Make sure you get it flushed every 35k-40k miles and a new filter installed. And much like a Manual, the clutch packs (they are wet clutches) are wear items.



Its got two distinct clutch packs, allowing it to shift one while the other is engaged, then switch the clutch and shift the other gears on the other shaft.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Yeah Audi kinda pricing itself in direct competition with Porsche with their Avant pricing, its kinda ridiculous.

I remember when they did the whole release video for the RS6 Avant and kinda laughed when I saw the $100k+ Plus pricetag. Audi keeps shifting itself further up market instead of being the mid-range sporting car selection that was supposed to fill the gap between VW and Porsche.

CommieGIR fucked around with this message at 19:50 on Mar 20, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

flightless greeb posted:

Yeah it's especially annoying with Porsche having diversified into CUVs and wagons themselves so Audi isn't offering that much there either.

Yeah Audi kinda lost their way in the late 90s when they started shifting from nice simple AWD platforms to Luxury Sporting and left their market behind

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Oof, yeah take that somewhere fast.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

Styles Bitchley posted:

Shame. I guess you've never heard the phrase "Audi makes 'em rowdy.....but Jetta get's 'em wetta."

Passat makes em....ties knots? Bad thoughts? I dunno.

We replaced my spouses Volvo wagon with a Passat TDI.

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Glad it was non-mechanical!

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

Preoptopus posted:

Im at the end of my rope. Looking for a driverside rear axle seal for a 83 b2 quattro coupe. Apparently the diff changed in 84 and the old seals are unobtanium.
From all my sources there is none in the US nor does anyone have plans to make them.
Any of you have any euro contacts that may have one laying in a box?? somewhere???

One, I'm super jealous as a vintage Quattro nut

Two: I'll see what I can find, at worse do you have the old seal? I can probably get some made. I make a lot of vintage Quattro spare parts.
At worst: It should have the 4.11:1 final drive, which is common on later model Quattros and you might be able to "upgrade" the rear diff to one you can source parts for and save the legacy diff for later.
This was wrong, UrQ has a -3.89:1 final, and while you can find a later diff that might fight, that's gonna be harder.

http://www.t85q.com/urTfa/Subgroups/rearaxle.html
Is it #23 on that diagram?

CommieGIR fucked around with this message at 19:20 on Mar 31, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

Preoptopus posted:

No thats the updated part number. I need 857525400a. Im scared to pull it to get measurements cause then the car is stuck on the rack.

Super appreciate the help

Audi Tradition is probably the only way to get it, but that's gonna be a challenge as they still don't sell/ship to the US so you have to find someone who can order locally

https://shops.audi.com/en_GB/web/tradition/p/seal-857525400a-10

If we can get the measurements, we can likely have them made in the US. I'll see if I can get one off one of my space 4000 Quattro rear diffs.

CommieGIR fucked around with this message at 19:40 on Mar 31, 2021

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug
Rockauto has the Hella Vaccuum Pump for like $200...

https://www.rockauto.com/en/catalog/volkswagen,2005,jetta,1.9l+l4+diesel+turbocharged,3169,brake+&+wheel+hub,vacuum+pump,5172

CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

latinotwink1997 posted:

I’ve got a 2012 GTI that just had the low oil pressure warning go on briefly while I was taking a fast turn and then went off. Turns out my oil was super low, only 5400 miles after my last change. I used to be able to go the full 10k without issues. It’s a little over 110k miles now and no leaks I can find. Is it something worth having checked or is this typical for this kind of age/mileage and I’ll just need to keep it topped off in between changes?

Honestly, 10k changes are kinda sketchy, between minor consumption all engines have and possible leaks, I don't do more than 7k at most, 5k if I can spare the funds for a change.

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CommieGIR
Aug 22, 2006

The blue glow is a feature, not a bug


Pillbug

User Error posted:

How are the Gen 3 ea888 1.8s holding up? I'm eyeballing TDI Sportwagens but I dont know if I want to worry about the HPFP and general emissions issues. The 1.4 sounds kind of gutless, how is the driving experience with those?

If you keep up with your Fuel Filter and never mess up and put gas in your diesel, the HPFP are perfectly reliable, and most of the Diesel Emissions stuff is covered under extended warranties now.

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