15/06/2026
A45 AMG in with no boost and no engine lights to point us in the right direction.
Luckily, this is a pretty common issue on these. Over time the wastegate actuator rod can develop play, meaning the wastegate can’t close properly when the ECU asks for boost. Instead of building boost pressure, it’s simply escaping past the wastegate.
A quick look at the datalogs backed up our suspicions, and sure enough the actuator rod had excessive play. Sometimes the simplest checks can save a lot of head scratching!
So the sensible choice of what to do next, is always let’s upgrade it 😈
So we sent the turbo to so they can strip it, service it, fix the actuator and then turn it into a hybrid unit aswell! We were planning a stage 2 build on this AMG 45, but with the new turbo we can go a little bit further!
New turbo fitted, fresh engine service provided using quality Shell Helix 5W40 performance oils prepping it for stage 2! On our datalogs the intake temps were super high aswel! We were reaching over 70C degrees 🤯 so we recommend to upgrade the intercooler so when he comes back with the turbo bedded in, it’s all ready for some power 😈