Caddy 1.6tdi issue

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STP
Hyper Poster
Posts: 627
Joined: Wed Jan 29, 2025 7:01 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by STP »

100 kpa is 1 bar so your pressure is 400 bar. The issue may be the pressure reading is too high, not sure what the ECU would do in this situation
2015 SWB Van, 1.6 CR TDI with Cruise Control, Heated Mirrors, Highline Clocks & MFD, VW Hands Free Bluetooth, Electric Windows, Reversing Cameras, DPF Monitor, Thatcham Cat 2.

My build thread: White MK3 Facelift

My DPF Monitoring Device thread: DPF Monitor
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120COZ
Caddy2k Groupie
Posts: 8
Joined: Sat Mar 23, 2024 7:43 am
Location: Bucuresti

Re: Caddy 1.6tdi issue

Post by 120COZ »

hello, if the engine light flashes when the ignition is turned on, there is a possibility of a lack of communication with the on-board instruments, but the car lost power and stopped, so I think it is more likely a flow regulator (on the high-pressure pump) or a pressure regulator (on the injector rail). with a tester you can check the main parameters: engine speed 200rpm, rail pressure 250 -350bar, (after starting 1500bar) crankshaft synchronization with camshaft. another cause may be a clogged exhaust (you can loosen it or unscrew the lambda probe for checking) If one of the regulators does not work or the injector empties the rail and exceeds or does not reach the target value, it does not authorize starting or the engine stops. I hope some of the recommendations help!
Caddy life 2015 1.6Mpi+Gpl
mark2406
Caddy2k Groupie
Posts: 17
Joined: Thu Oct 16, 2025 9:36 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by mark2406 »

It’s currently at a vw specialists atm. Update you when we know what’s going on as it seems to baffling everyone.
mark2406
Caddy2k Groupie
Posts: 17
Joined: Thu Oct 16, 2025 9:36 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by mark2406 »

Ohhhhh it’s turned into a disaster……
Turbo fins have snapped off, gone through the engine, bent atleast 2 valves so looks like engine rebuild or new engine jobby 😑
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120COZ
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Posts: 8
Joined: Sat Mar 23, 2024 7:43 am
Location: Bucuresti

Re: Caddy 1.6tdi issue

Post by 120COZ »

Yes...a real bad luck, I'm sorry.
Caddy life 2015 1.6Mpi+Gpl
mark2406
Caddy2k Groupie
Posts: 17
Joined: Thu Oct 16, 2025 9:36 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by mark2406 »

Finally back on the road woo hoo Let the build commence :D
kobat79
200BHP+
Posts: 229
Joined: Fri Aug 11, 2023 11:27 am
Engine size/power: 1.9 TDI (104bhp)
Location: Co. Louth, Ireland

Re: Caddy 1.6tdi issue

Post by kobat79 »

New engine or rebuild?
mark2406
Caddy2k Groupie
Posts: 17
Joined: Thu Oct 16, 2025 9:36 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by mark2406 »

New engine. Took the head off the old one and one piston was battered to pieces and nearly all valves was bent.
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Javito
100BHP+
Posts: 169
Joined: Sat Feb 18, 2023 12:56 pm
Engine size/power: 1.6 CR TDI (75bhp)

Re: Caddy 1.6tdi issue

Post by Javito »

Pardon my ignorance but I struggle to see how the bits of compressor (small enough to go through the intercooler) could bend the valves.
Couldn't it have been a timing issue from the beginning?
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sheepy92
Twin Turbo poster
Posts: 375
Joined: Mon Oct 23, 2017 8:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Caddy 1.6tdi issue

Post by sheepy92 »

Javito wrote:Pardon my ignorance but I struggle to see how the bits of compressor (small enough to go through the intercooler) could bend the valves.
Couldn't it have been a timing issue from the beginning?
I also agree the shards of metal must be micro scopic to pass through the intercooler core make it past all that carbon on the inlet and into the cylinders


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