Resolved 2005 VW Beetle 1.8l

[rvralph64]

After resolving the injector problem and working fine, I started it up this morning and it shutdown after a few minutes of idling. I scanned for codes and got a 17746 CPS G40 code. I replaced the CPS with a known good unit and no start. The engine turns over but no start. I checked the timing belt and noticed that it doesn't turn the camshaft when I turn the crankshaft. It looks like I have to take the head off to work inspect the valves and pistons for damage.

 

[Boki Ar]

I scanned for codes

Post that full Auto Scan so we can see it, please.

 

[rvralph64]

Will do once I get back home late tonight. I fully expect to see major damage once I remove the cylinder head. It's too bad because it was running so good. I should have replaced the timing belt.

 

[Boki Ar]

For start, remove the timing belt cover and look...

 

[rvralph64]

Hi Boki,

I removed the timing belt cover and when I rotate the crankshaft clockwise, the belt does not move. I will be removing the head to inspect for valve and piston damage after I get a good look at the timeing belt on the crankshaft.

The immobilizer code was from me playing around with a spare key that does not have a chip.

Thursday,26,September,2024,07:21:26:07661
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 24.7.0.0 (x64)  HEX-V2 CB: 0.4643.4
Data version: 20240715 DS356.3
www.Ross-Tech.com




Chassis Type: 1Y (1Y - VW New Beetle Cab (2003 > 2010))
Scan: 01 02 03 08 15 17 19 25 26 29 35 37 39 46 54 56 65 75
 
VIN: 3VWCD31Y35M316971   Mileage: 192860km-119837miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06A-906-032-BKF.lbl
   Part No: 06A906032QS
   Component: 1.8l 5VT NBC AG6G   6481 
   Shop #: WSC 00066 
   VCID: 7F5B13D5DEECA222269-513C
   06A906032QS 1.8l 5VT NBC AG6G   6481

2 Faults Found:
17978 - Engine Start Blocked by Immobilizer
            P1570 - 35-10 -  - Intermittent
17746 - Camshaft Position Sensor (G40)
            P1338 - 35-00 - Open or Short to Plus
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 09G-927-750.clb
   Part No: 09G 927 750 AN
   Component: AQ 250 6F           0609 
   Coding: 0000008
   Shop #: WSC 00000 000 00000
   VCID: 7DA7E9DDD1E0B032345-513C

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ESP-F.lbl
   Part No: 1C0 907 379 M
   Component: ESP FRONT MK60      0102 
   Coding: 0019970
   Shop #: WSC 00066 000 00000
   VCID: 34310CF9A22AB17A8BB-5160

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1T0-909-605.lbl
   Part No: 6Q0 909 605 AF
   Component: 01 AIRBAG VW71      0609 
   Coding: 0012337
   Shop #: WSC 00066 000 00000
   VCID: 7BA3E7C5CFF4BE020A1-5160

   Subsystem 1 - Part No: 1C0 959 339
   Component: BF-Gewichtsens. 004 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1C0-920-x4x.lbl
   Part No: 1C0 920 951 N
   Component: KOMBI+WEGFAHRS. M73 V02 
   Coding: 11234
   Shop #: WSC 00000 
   VCID: 2C0114997F1AE9BAD3B-4B1E
   3VWCD31Y35M316971     VWZ5Z0D9087051

1 Fault Found:
01176 - Key
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901
   Component: Gateway K<->CAN    V022 
   Coding: 00006
   Shop #: WSC 00066 
   VCID: 70B9C0E993B2CD5AAF3-4B1E

No fault code found.

-------------------------------------------------------------------------------
Address 26: Auto Roof        Labels: 1Y0-959-255-HYD.lbl
   Part No: 1Y0 959 255
   Component:  VSG  NBC       † 
   Shop #: WSC 00000 000 00000
   VCID: 7DA7E9DDD1E0B032345-513C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 G
   Component: 6J Komfortgerát HLO 0004 
   Coding: 00256
   Shop #: WSC 00066 
   VCID: 3B2327C58A747E024A1-4B00

   Subsystem 1 - Part No: 1Y1959801C
   Component: 6J Tõrsteuer.FS KLO 0005 

   Subsystem 2 - Part No: 1Y1959802D
   Component: 6J Tõrsteuer.BF KLO 0005 

   Subsystem 3 - Part No: 1Y0959811
   Component: 6J Tõrsteuer.HL KLO 0001 

   Subsystem 4 - Part No: 1Y0959812
   Component: 6J Tõrsteuer.HR KLO 0001 

No fault code found.

End----(Elapsed Time: 04:09, VBatt start/end: 11.9V/11.8V. VIgn 11.6V)-----

 

[rvralph64]

The belt was toast, every cog that contacted the crankshaft sprocket was sheared off

 

[Boki Ar]

I'm sorry about that. How old was the belt, just curious...

I think that head removal is inevitable now.

 

[EuroX]

Gonna need valves at the very least with head bolts, head gasket, timing belt kit and necessary gaskets for exhaust manifold and intake manifold.

 

[rvralph64]

Good morning. I bought it as a flip so I have no idea how old it is. Very likely original. I am planning on doing a leak down test just to get practice on doing this but I know the head needs to come off. Thanks

 

[rvralph64]

I read that the 1.8 is an interference engine so it's guaranteed to have valve damage. I trained to be a mechanic and practiced it for a several years but hurt my back and gave it up for a career in sales. I took up wrenching again after 40yrs as a hobby and because my wife wanted a beetle and I found out really quickly that I needed to do my own mechanic work. The local dealer was draining my wallet. I have been doing this now for over a year and I am on my 11th beetle. This is the first one that blows up in my face. I own a 2008 with the 2.5l engine.

 

[vwtech]

Take real care when removing the rear chain tensioner lining the 16 links can be a mother being your first time.
They always look off 1/2 tooth mark the sprockets and the actual link in chain you can reuse this chain. You'll see... LOL
Good Luck

 

[rvralph64]

Hi VWTech, not sure what you mean by loot? I assume you mean the timing chain that syncs the two cam shafts since it's the only chain.

Thanks

 

[vwtech]

Look not loot.
Good Luck

 

[rvralph64]

Got it. Thanks!!

 

[Dr Sheldon]

Throw a belt on first - Never Know !!

People do win the lottery in real life !!

 

[rvralph64]

Thanks Dr Sheldon. I plan on doing so before tearing it apart any further besides, I am waiting for the T55 x 6 inch 6pt torx bit. I also plan on going to the junk yard and practice taking a head off a 1.8 before removing mine.

 

[Dr Sheldon]

Thanks Dr Sheldon. I plan on doing so before tearing it apart any further besides, I am waiting for the T55 x 6 inch 6pt torx bit. I also plan on going to the junk yard and practice taking a head off a 1.8 before removing mine.

Be sure to practise putting it back on - Might be wise !!

 

[rvralph64]

Good afternoon. So I reassembled it with new timing belt installed and it started right up but with a cylinder missing. I did a compression check on each cylinder and got #1-170psi, #2-160psi, #3-160psi and #4-0psi. I have determined that I have bent valves in #4. I'm now in the process of removing the cylinder head. Interesting how fast disassembly to takes once you have done it once.

 

[vwtech]

So you removed a used head from a another car.
Are fixing your head or swapping head?

Good Luck

 

[rvralph64]

I think at this point I just want to take it apart and see how bad the situation is before deciding on fixing it or swapping it. I bought the car to flip it. I still have room in my budget to absorb these extra costs. More than anything, it's presented itself as an opportunity to learn. Up to know it's been more about fixing window regulators, door actuators and just general maintenance but this car has been a Pandora's box. The timing belt installation was a good experience.

Thanks