[Quacker]

Originally Posted by ayrix

Hi guys, first of all, sorry for my english since I'm a user from germany.

I just would like to describe the situation I am in right now.

Two weeks ago I also went to the Volvo dealer to perform the recall R29950 in order to change the ECM Software which should reduce the soot coming from the EGR to not make carbon deposit build on the intake valves. In this case the intake valves would not close properly and the combusted mixture could be blown back to the intake manifold which could melt or deform the intake manifold.

Once the service was done and the new software was flashed, I took my car and went back home. Next time I sat in the car, the engine light turned on and the injection in the 2nd cylinder was cut. Engine was not running round anymore.

So I went back to the car dealer and he checked the engine. After a while he came back and told me that they got to remove the cylinder head to clean the intake valves and and the seats since they are leaking.
So I asked him how he does know that they are leaking after 10min checking the engine without doing a compression or leak down check. Then he told me that they did a electrical compression test to check if the intake valves are leaking. I asked him if he knows how that works because I only know about compression checks which can tell you that there is compression issue in generall without telling you if the intake valve, exhaust valve, glow plugs, injectors or the pistons are leaking.
His answer was that he also doesn't know how that works.

I took my keys and went to another car dealer to to seek a second oppinion.
The other car dealer made the same diagnostic and told me that this is actually Volvo's fault since the original (previous) ECM-Software was producing too much soot which built carbon deposits on your intake valves why I have a leak on that cylinders now.
He told me that the new software should avoid the carbon deposit creation but I was too late already.

After I asked why the older software did not recognize that, he told me that in the new ECM software it's implemented a new diagnostic function what makes possible to detect leakage in the intake valves.

Now I contacted Volvo Costumer service and waiting for an answer how we will proceed now. The car has only 30.000km and has already this issue - unfortunately no warranty anymore but let's see what Volvo will say.

What do you think guys? Who should pay the repair? does anyone has similar issues?

Is this on one of the current generation of cars? With only 30,000kms maybe it is. Maybe you drive very short distances and mainly at slow speeds? This would not be a suitable driving style for modern diesels. But I speculate…..