Volvo Penta IPS Azimut 43s. 2005

This IPS has given me trouble after trouble can anyone confirm with me that this is a bad piece of mechanical design.
About 9 months ago, a new IPS was installed whole, the port side, expensive but this was subsidized by the insurance as they confirmed a latently defective part was the cause of trouble in the first instance. That took nearly 12 months from claim to installing the new drive. On our 4th outing, after 8 hours or so, the engine overheated at over 2800 rpm. We cleaned out the cooling system then ok.
5 months later, we book her in for service and anti fouling, relaunched 14 days later. After on the third outing, starboard IPS shows sea water enters the drive. Mechanic says take her out and see if more water comes in. If yes that need to order and change all seals. Yes, out of action again for 1 month awaiting parts from the useless dealer in HK since they never stock parts. Relaunched, everything ok. After 7 hours, that was 2 days ago, suddenly the alarm warning comes on just as we are pulling out and the panel reads steering limited and rpm.
Yesterday mechanic that replaced seals on this starboard drive tells us the starboard steering sensor controls on the ips are defective or something like that.
Can someone shed light on this matter and if there is a proper way to test by elimination. These guys keep killing us every time they service the boat.
We bought her second hand with only 200 hours on the engine 18 months ago and we did not get to use her last summer and it's really pathetic.
Thanks waiting for your kind thoughts, eric

IPS defect

Thanks for reply.
Mecahnic have told us it's the angle sensor that's defective now and the boat has to be lifted out for recalibration. Eric

IPS 2005 Azimut 43S

After replacing the various sensors on the starboard IPS in relation to the steering rudder defect mentioned earlier, the alarm still came on indicating steering rudder defect limited rpm.
The mechanic was flustered, so wrong diagnosis and then he says it is the servo motor and the software and cost is $HK60,000.00
Can anyone shed some light on this.. Thanks eric

Thanks Captain J for your reply.
We are using the Volvo dealer in HK and it is their mechanics that I suspect have made things worse.
This defect of the steering sensor and rudder defects occurred only after the seals on the IPS were replaced.
Can we complain to Volvo Penta in Sweden directly?
Thanks eric

Thanks for the quick response yachtjocky.
I believe that when replacing the seals, the mechanic did or did not do something that resulted in overheating of the servo motor as he says he has identified as the main problem.
After I posted the thread, I received a quotation for replacement of servo motor and software kit for an almighty total of $59000. Additional $1600 for courier.
How does overheating happen just like that when it was ok before seal replacement. By the way they have not asked us to pay for replacing sensors which I believe were never defective anyways.

Thanks fish let me ask, but the Hong Kong VP agent is very bad and that's why we don't have much support other than asking for money.

Hi everyone, I just got back from a week vacation in Phuket Thailand and my Azimut is now fixed and running like she should.

The mechanics replaced the black color servo motor and software link cable for a whopping HK$59000.

They did not insist I pay the previous bills which they claimed the sensors were defective on the starboard IPS drive.

In any case they did not confirm which part was defective they recommended that both items be replaced. Thanks again for your help guys, eric