Have been looking at the common cause of the egr problem on the Skoda 1.6cr and it seems the plastic cog that is driven by the metal gear on the motor causes the plastic gear to strip its teeth on not move the mechanism throwing up a fault code P0403

Now £800 to replace this item seems a lot of money

On a well know auction site there are plastic gears available to purchase to replace the gear at fault for maybe a £30 fix

 

Looking upwards under the car (see pic) you can see the housing the gear sits in and removing the 4x 2.5 Allen headed bolts and the electrical connector would release the mechanism

The gear in the housing can then be swopped over and the housing placed back onto the egr and bolted back up and electrical connection plugged in

 

anyone tried this? may give it a go this week

 

 

 

The real question is why the plastic teeth sheared in the first place.

Could it be that the whole assembly is full of carbon coke and that the gear drive motor was asking the gears to take excessive torque? You may still need to drop the egr unit to give it a decoke. 

There are pictures elsewhere on this forum of totally blocked valves, especially those that had the emissions fix where the valve is forced to work over a larger range of movement.

Yes the crud could have caused the gears to jam and the metal gear just sheers the teeth off.

 

My car never had the emissions update done but I believe skoda replaced these units amongst other items under there 2 year trust building measure.

 

If I get my egr replaced by my local indie is it worth getting skoda to update the software and get the 2 year warranty. Car is under the 160,000 mile threshold. Has been service by myself after warranty ran out using genuine parts. Would that be enough to refuse the 2 year trust building warranty 

Edited 17 March, 20197 yr by mike4scuba

12 minutes ago, mike4scuba said:

If I get my egr replaced by my local indie is it worth getting skoda to update the software and get the 2 year warranty. Car is under the 160,000 mile threshold. Has been service by myself after warranty ran out using genuine parts. Would that be enough to refuse the 2 year trust building warranty 

 

No No No No

They replaced mine for free after the emissions update killed it. Have a chat to your local VW/Skoda, they can ask Skoda to do it out of Goodwill.

Only get the software fix if you plan to sell the car soon. The 1.6 CR seems to be affected most by the fix; loss of low down torque, increased fuel usage, failure of various component including multiple EGR, frequent limp mode.

There is also the question of whether (under Trust Building Measures) they will replace a EGR that failed before applying the fix.

 

Search for the Facebook page VW Emissions Scandal to see the experience of many thousands of drivers, and the progress being made to bring VW to book via the UK Government and legal action.

Been advise to egr fixed by indie garage and not get the update done as it forces the egr valve to work twice as hard

 

Its lasted 138,000 miles so not done to bad though I always use shell fuels and not supermarket pisch

Edited 18 March, 20197 yr by mike4scuba

Good move. Indies charge much less than Skoda too. At 138k miles that gives me confidence that mine will last quite a few more years yet.

I also drop the oil and filter every 8000 miles using low ash quantum 5w30 long life oil.

Believe if oil goes for longer periods this collects more carbon and also contributes to extra crud passing through the egr valve

Edited 18 March, 20197 yr by mike4scuba

Dilution of the oil by diesel fuel after a failed dpf regeneration is an issue and many people recommend more frequent oil changes for this reason. It is especially so if you have had the fix as regeneration is more frequent. Quite a few people have posted on other forums about rising oil levels post fix.