Please help turbo issues
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Joined: Aug 2013
Posts: 90
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Mercedes s320 (w220)
Please help turbo issues
About 2 weeks my car started losing power and started smoking heavily with blue smoke losing a lot of oil.
Had a new turbo fitted, smokes on start. Goes up to 4 000 revs and then limp mode activates. Getting to 4000 revs takes a few seconds and gear change is delayed upon reaching 4000 revs.
Stays at limp but doesn't go over 2000. Still sluggish but can feel a little umph from the turbo very slightly however. A service was performed on turbo change. Checked cat by deactivated but still no power. On idle revving is okay with cat or decat. Shoots up okay.
Changed mass sensor as it was showing as fail. Still nothing. Noticed the heaters blowing colder air than normal. Car only reaches 60 not normal operating temperature. Noticed very slight flickering on dash lights.
Star diagnosis coming up with nothing. Can anyone shed any light on possible fixes. Thanks!
Had a new turbo fitted, smokes on start. Goes up to 4 000 revs and then limp mode activates. Getting to 4000 revs takes a few seconds and gear change is delayed upon reaching 4000 revs.
Stays at limp but doesn't go over 2000. Still sluggish but can feel a little umph from the turbo very slightly however. A service was performed on turbo change. Checked cat by deactivated but still no power. On idle revving is okay with cat or decat. Shoots up okay.
Changed mass sensor as it was showing as fail. Still nothing. Noticed the heaters blowing colder air than normal. Car only reaches 60 not normal operating temperature. Noticed very slight flickering on dash lights.
Star diagnosis coming up with nothing. Can anyone shed any light on possible fixes. Thanks!
MBWorld Fanatic!
Joined: Nov 2010
Posts: 2,605
Likes: 343
From: Welwyn, Herts, UK
2006 S600
What appear to be turbo problems are usually caused by everything BUT the turbo.
When your turbo was replaced, were the oil feed and return pipes replaced?
Have you changed the air filter?
Is there a blockage somewhere in the intake system?
Are the pipes and valves that control the wastegate in good condition?
Does the crankcase breather need cleaning?
Is the engine oil at exactly the right level, quality and condition?
Those are usually the first things that turbo repairers ask.
Nick
When your turbo was replaced, were the oil feed and return pipes replaced?
Have you changed the air filter?
Is there a blockage somewhere in the intake system?
Are the pipes and valves that control the wastegate in good condition?
Does the crankcase breather need cleaning?
Is the engine oil at exactly the right level, quality and condition?
Those are usually the first things that turbo repairers ask.
Nick
Last edited by Welwynnick; Oct 6, 2014 at 03:18 PM.
