This Caddy arrived very very poorly , heavy black smoke and no power - to diagnose the issue we first did a smoke test which revealed no leaks, then it was onto the dyno for a datalogging session, target boost was a mile off so we pulled off the inlet to check the turbo and found it to be entirely blocked full of carbon due to low pressure EGR failure at the rear of the engine, this led too all gases being dumped back into the turbo therefor blocking it, unfortunately the result of this failure also blocked the charge cooler solid and beyond saving so we ordered a new updated charge cooler and sorted the egr issue at the same time.

We were still wanting to remove the turbo for flow testing and have the Veins checked howeveer the customers planned changed so we were asked to go no further.

We put it all back together and curiosity got the better of us and we took it out for a data logging session on the road, initially the actuator was stuck but soon released giving 1 final puff of smoke before coming back to life with full boost now available - no further warnings on the dash board and full power restored.

This caddy is a example of our years of experience and correct methodical diagnostics procedure which ultimately ended with the van being fixed and back on its way to London and one very very happy owner.

#testdontguess #mapro #vw #caddy