[Engine] Turbo/exhaust heat shield replacement

[saskak]

Hi all,

My turbo/exhaust heat shield has broken off from one of the bolts and is vibrating with some horrible sound. I suspect this is a relatively common fault and it would be great if someone can provide some pointers on how to replace it. I have currently secured the heat shield with heat-resistant steel ties, but from vibrations they brake off every 1-2 months, so I want to replace the rear heat shield (engine-side).

This is for the M59 (2007 1.6HDi, no DPF). As per another thread, I think both parts of the heat shield can be taken out upwards with some wiggling. This will be the easiest option, if possible, as I would not need to remove the exhaust. Here is how it has broken off:

  rear_heat_shield_broken.pdf (Size: 6.36 MB / Downloads: 29)

I am a bit uncertain about several points.
Does anything go through the hole in the middle of the rear part (engine-side) of the heat shield (pdf with arrow pointing to the hole)?

I think that the banjo bolt with the oil pipe go around the heat shield, so if I am careful taking it out it should not affect the turbo oil pipe?

My main concern is the two bolts and bracket (number 3 in pdf) that hold the cat/exhaust in place. In order to take the heat shield out I need to undo the two bolts, so the cat/exhaust will be held in place only by the turbo and the rear part of the exhaust. Will this be enough not to drop?

  M59_heat_shield.pdf (Size: 191.11 KB / Downloads: 26)

Any other pointers are more than appreciated. Thanks.

Cheers,
saskak

[GraemeT]

"Does anything go through the hole in the middle of the rear part (engine-side) of the heat shield (pdf with arrow pointing to the hole)?"

Had a look at mine - that hole is there to fit around one of the nuts sticking out of the engine block. Not really able to held with the other problems. (I have replaced part #15 in your second pdf and the remainder is held to the mountings with jubilee clips - that made the car so much quieter we could hear the dodgy wheel bearing :-(  )

[saskak]

"Does anything go through the hole in the middle of the rear part (engine-side) of the heat shield (pdf with arrow pointing to the hole)?"

Had a look at mine - that hole is there to fit around one of the nuts sticking out of the engine block. Not really able to held with the other problems. (I have replaced part #15 in your second pdf and the remainder is held to the mountings with jubilee clips - that made the car so much quieter we could hear the dodgy wheel bearing :-(  )

That's great, thank you. I previously also replaced #15, clean break from both mounting points. These aluminium heat thingies are pretty poor design/build.