CXEB… I think you know where this is going..

[Lavo]

Well after being concerned about oil consumption over the last few weeks. I’ve been weighing up new engine options and all that fun stuff.
Now i’m not 100% certain but I think its done 500ml in 500miles. Topped up and logged milage to monitor again.
Fast forward to last night and my EML makes an appearance with the flashing glow plug light and reduced power.
Multiple plausibility/ range/ performance faults stored. Sensor ref B voltage. Along with P13D500 (Glow plug cylinder 3 pressure sensor) My thinking is the glow plug sensor has pulled the circuit down.. thoughts? anyway I digress…
Seeing I was going to effort of replacing the glow plugs I decided to do a compression test. When in Rome and all that.
All cylinders were 22/23 bar. No excessive oil in the inlet/ cooler/ Hoses. So i’m a bit stumped. IF its consuming too much oil is the block wearing and its just about what VW would call ‘normal’
Or do I pull the turbos? Is there something i’m missing? I expected to find something obvious.

I might borescope the cylinders before it goes back together. But if all good, then what?

CXEB 204 MY19 LWB 4MOTION

 

[mmi]

CXEB 204 MY19

Based on VW TPI MY19 is not a primary candidate for block wear type of oil consumption issue.

Post in thread '2017 204 Bi-Turbo Engine Swap by VW Main Dealer'

31 Jan 2024

under warranty from VW.

the dreaded high oil consumption

The problem with the swap is that it only includes the block and no auxiliarys like EGR, Turbos DPF etc.

Perhaps you could ask the dealer to reach out the following VW TPI:



which among other things states the following:

• mmi

• 

 

[Dellmassive]

More cxeb info.

Thread '- 204ps Bi-Turbo CXEB T6 Engine & Turbo problems -'

17 Aug 2024

- 204ps Bi-Turbo CXEB T6 Engine & Turbo problems -

Looks like im the latest patient of the CEXB engine issues.

(possibly the 2016-2018 range as there is a mention that the CXEB Block etc was revised in 2019)

(the CXEC 199ps Bi-Turbo was released 2019> and revised )

in sort it looks like its either Turbo or Engine failure.

here is some background:

******************************************************************
204ps Bi-Turbo CXEB Engine & Turbo problems...

• Dellmassive
• cxeb engine
• Replies: 494
• Forum: Engine, Gearbox, Exhaust, Drivetrain

• 
• 

 

[Lavo]

Quick update: it’s not looking good.. quoted for a new engine. Looking at least 6k. No labour.
I’m planing on taking the cylinder head off before pulling the trigger to try and get a better understanding of whats happened.

Still, better now than somewhere in Europe.. I guess

 

[Dellmassive]

When you follow the VW TPI,

After the oil loss test .....

The first test is the cylinders compression test.... Which we have the lower limit now

And then after that to measure the physical bore wear, to confirm the wear...

That then proves the problem.

Fix is long block engine + car + DPF + lambda sensor.

 

[Dellmassive]

FYI..

compression test . . .


new engine 25 - 31bar
wear limit 19bar
max difference 5bar


.....

 

[darkman884]

Why are you stumped?
You have performed a compression test on all cylinders which is satisfactory.

You have checked boost pipework for excessive oil and that is also satisfactory.

You have a fault codes that you are yet to action for a glow plug.

Yet you are looking for a new engine and taking the cylinder head off ??

Why not replace the number 3 glow plug or sensor ( for the code ) first?

 

[Lavo]

FYI..

compression test . . .


new engine 25 - 31bar
wear limit 19bar
max difference 5bar


.....


View attachment 317726

Compression test was 22/23bar all cylinders. I was hoping the compression test would nail something on straight away.

 

[Lavo]

Compression test was 22/23bar all cylinders. I was hoping the compression test would nail something on straight away

Why are you stumped?
You have performed a compression test on all cylinders which is satisfactory.

You have checked boost pipework for excessive oil and that is also satisfactory.

You have a fault codes that you are yet to action for a glow plug.

Yet you are looking for a new engine and taking the cylinder head off ??

Why not replace the number 3 glow plug or sensor ( for the code ) first?

Because its failed an oil consumption test. And further investigation has found some worrying signs on the bore (cyl 3)

FYI..

compression test . . .


new engine 25 - 31bar
wear limit 19bar
max difference 5bar


.....


View attachment 317726

Thanks for the data

 

[Lavo]

Why are you stumped?
You have performed a compression test on all cylinders which is satisfactory.

You have checked boost pipework for excessive oil and that is also satisfactory.

You have a fault codes that you are yet to action for a glow plug.

Yet you are looking for a new engine and taking the cylinder head off ??

Why not replace the number 3 glow plug or sensor ( for the code ) first?

The glow plug/ sensor fault is a separate electrical issue.
Believe me i’m not taking the cylinder head off for a laugh. I’d just rather pull the head now and confirm my worries. Replace the engine. Can’t have it itself in the summer when i’m Europe.

 

[Dellmassive]

Fyi....

For the VW 2.0 BiTDI (CXEB) engine, Volkswagen typically considers oil consumption up to 0.5 liters per 1,000 km/621miles (approx. 0.5 quarts per 621 miles) as within acceptable limits, according to technical bulletins. However, many owners and specialists consider anything approaching 1 liter per 1,000 miles to be excessively high, potentially indicating premature engine wear, particularly EGR-related cylinder damage or turbo issues.

 

[Dellmassive]

How are you monitoring the oil use,?

VW do an oil weight test ... As oil dilution from diesel can show incorrect data.

IE a clogged dpf will cause excessive regens that cause diesel to get in the oil and raise the level etc.

Oil is heavier than diesel, so they add a specified amount of oil and weigh it. Then you do the 620 miles,.... Then they drain and weigh it.

The volume may be high, but the weight low.....indicating oil dilution. And a high oil loss.