I've recently replaced my EGR cooler in my 1.6tdi greenline since it broke down, and now Im looking into a possible EGR delete(remap delete). I just wanted to know if there are any downsides besides the obvious NOx increase?
I've heard that a EGR delete can lead to too high temperatures in the combustion chamber which is bad for the pistons and also overheating the engine oil which can lead to engine wear and possibly turbo failure, is this true??? Has anyone experienced any of these issues???
Thanks

I wouldn't be concerned about elevated cylinder temperatures.

Edited 22 August, 20187 yr by MicMac

Ok. So there's only pros by deleting the EGR besides the NOx increase?

I had an EGR delete through a remap a while ago now as I didn't want to have to pay £500-£600 when it failed. Someone may correct me here, but I believe the EGR also helps the engine get up to temperature quickly. As such since the remap my car takes for ever to warm up and it's only when it's at operational temperature that the MPG start to improve. So I have noticed a colder more rattly car for the first 20mins of driving (moreso on colder mornings) along with a drop in my long term average MPG. 

 

On the plus side, the remap has improved the performance from 2,000 rpm upwards with the car now pulling strongly to the red line. Prior to the remap it seemed to almost flatline at 3,000rpm and didn't inspire confidence when overtaking.

Thanks for your input. It sounds like the EGR delete doesn't have a negative effect hence overheating issues