Just had to replace an injector on my Roomster TDI 1.6. A hefty cost, but not complaining too much as I have elected to use the car till its last breath and see the extra maintenance costs as part of the price of my motoring rather than forking out on a new car. Furthermore, it has more than 120,000 miles on the clock, so has provided good service so far. The injector problem was intermittent, so engine vibration, glow plug light flashing, but after a restart it was OK and could be driven again, with vibration gone. The garage said it had not yet failed but probably would and on removal they found some sparking between the solenoid windings due to the insulation perishing.

 

I had an injector fail outright three years ago and the car would not move and was expecting that the injector playing up would be one of the old original fits to the engine, but it turns out to be injector 3, which was the one I had changed at the official Skoda service three years ago, so I am a little puzzled why that would be? One assumption is the replacement fitted was not of a good quality, but also wondering if there might be something relating to No 3 specifically in terms of it being more exposed to the elements, or to greater heat in that part of the engine than the others?

 

Also, as it is such a drive ending repair, is there any way to be able to check the injector health before setting off on a long trip? Both times I have had them changed they have told me that there is nothing to check until the injector fails and that they could not check the other ones for me just to make sure they are also not about to fail. Anyone have any ideas on that?

 

That's funny, No. 3 was the one that went on my one too. Could be heat sink related being right in the middle of the engine but that's purely speculation. 

 

As for tests to determine if one is on its way, you can either resistance test the coils of each injector and compare the results, they should all be within a nearness if ok or way different if on the way. Or you could get someone with VCDS, if you don't have it, to measure the volumetric variances between the injectors although this doesn't necessarily mean one is on its way out.

 

Hope this helps. 

I have a 2011 Octavia Greenline.  All four injectors have failed one by one in an identical manner at roughly 1,000 mile intervals even though the car has only done ~85k miles.  Maintenance and servicing has been carried out by authorised Skoda dealer since new.  No misfuelling faults.  Repair costs £450-£500 a time, not to mention the disruption caused by four major breakdowns.  Mpg was also greatly reduced post emissions scandal repair.   Skoda refused point blank to even consider this a problem or undertake warranty repairs under the trust scheme, even though there is a known batch problem with the pre-2013 injectors (for which there was never a recall).  Owners are left picking up the tab for a piece of garbage.  I am through with Skoda.  They cannot be trusted, and behave like arrogant gangsters.  Customer service - pah!  I will never buy another Skoda as long as I live, and would strongly advise anyone else to avoid them like the plague.        

I have a 2010 Roomster 1.6 TDI with what sounds like exactly the same issue. Vehicle serviced regularly at Skoda dealer.

Broke down on the motorway 300 miles from home - no. 3 injector gone. Cost me to get it repaired at the local garage. Did another 1000 or so miles before breaking down again - I suspect the same fault, but cannot get drive it at the moment (vehicle stalls and does not sound healthy at all) to get diagnostics - so will likely have to pay someone to come out to it.

Performance and MPG seems affected since the emissions "repair". Does anyone know if this is related to the fuel injector issue?

Just trying to consider if it is worth the repair cost?

Thanks

Ou of interest, would an injector failure show up on a diagnostics scan?

I have a colleague at work who owns a Roomster 1.6Tdi, and the engine cut out, and will no longer start.

The garage she took it to says it is a mechanical issue, and want to change all 4 injectors, but surely there should be some kind of fault code?

 

I was wondering if it could be the in-tank fuel pump?

On 07/02/2024 at 14:24, CageyH said:

Ou of interest, would an injector failure show up on a diagnostics scan?

I have a colleague at work who owns a Roomster 1.6Tdi, and the engine cut out, and will no longer start.

The garage she took it to says it is a mechanical issue, and want to change all 4 injectors, but surely there should be some kind of fault code?

 

I was wondering if it could be the in-tank fuel pump?

 

It should do. 

 

The in-tank pump you should be able to hear working for five or so seconds when you turn the ignition on.

I have a 1.6tdi Yeti which had one injector 2 years ago which neither restored the lumpy idle, the economy nor the horrible diesel knock noise just off tickover under light load.

 

I tried the injector deviation test on VCDS but it simply destroyed the tickover and made the car sound like it was running on 3 cylinders, I have since found out this doesn't work on SW version 8822.

 

Next steps in the coming weeks are; log the injectors via VCDS over a few miles, clean out the ASV, and I find myself in agreement with @HeavyMetalRich in that I firmly believe a clogged lift pump in the tank may cause starvation issues. 

45 minutes ago, b1ackb1rd said:

I have a 1.6tdi Yeti which had one injector 2 years ago which neither restored the lumpy idle, the economy nor the horrible diesel knock noise just off tickover under light load.

 

I tried the injector deviation test on VCDS but it simply destroyed the tickover and made the car sound like it was running on 3 cylinders, I have since found out this doesn't work on SW version 8822.

 

Next steps in the coming weeks are; log the injectors via VCDS over a few miles, clean out the ASV, and I find myself in agreement with @HeavyMetalRich in that I firmly believe a clogged lift pump in the tank may cause starvation issues. 

 

My Roomster was the same. I never looked hard enough into the reasons for the symptoms as I had to replace the power steering pump and pipes just before the injector went so the decision was made that it was time to go.

 

I suspect that it would never have been the same again unless I'd done all four at the same time possibly with recutting the injector seal seats as well.