Replacing Timing Chain Tensioner M62b46

[Gurjit]

Originally Posted by BWK

Gurjit,

Are you speaking of an internal exhaust manifold leak or downline?

my right side exhaust is leaking somewhere,
when i start the car u can hear a little bit of farting/air noise from the passenger wheel well, and thats where i hear that tick tick noise

i put my hand on the motor, front cover aswell and its very smooth, i got 110,000km so it cant b timing chain as the noise comes and goes depending on engine temp/exhaust manifold temp

my guess is where the exhaust manifold meets the mid-pipe donut conection or directly from the port out of the cylinder head

[BWK]

http://www.youtube.com/watch?v=AIBJq7pDIjs

Here is another video I just took.

If it is excess exhaust manifold where you say it might be, is that a very large job to undertake? I guess I'm referring to having somebody else do it. is that a difficult job/Big money?

Thank you for your input!

[SlickGT1]

P2097 states a pre-cat O2 sensor.

Pair that with the sound, and it can be an exhaust leak as Gurjit is suggesting.

[SlickGT1]

Yea it is not your chain.

[BWK]

Thank you so much everyone, For your input.

So, am I correct in assuming that you are stating that ticking noise is/could be a product of an exhaust leak?

[BWK]

The P2097 code is a pre-cat sensor fault. I have replaced both of those as well. Since I did that, I got the descriptions for some other makes of automobiles with the same code. I cross-referenced it with the GM descriptions for that same code and it indicates a vacuum leak Or a faulty MAF or a leak near the MAF. I did just replace the MAF as well.

[BWK]

http://www.youtube.com/watch?v=Ay8gS8tJ5EQ

I just drove for about 35 miles. I stopped to take a leak and listen for the noise and there's no noise. I did not shut the car off from the previous video that I posted.
My apologies for the wind noise, but I'm in the middle of nowhere.

The intermittent aspect is what perplexes me the most

[BWK]

CUST SERV. 800-831-1117

E53 X5 SAV PL 1|
| OP NUMBER : 1131051 TOTAL $ 8156.48 |
| MODIFIER : |
| 1. OPERATION : Timing Chain, r&r (ADD Oil & Filter) |
| 2. DESCRIPTION: 4.4i 04/06 |
| 3. HOURS : 55.00 LABOR: 5933.00 SPG LABOR CODE: C |
| |
| 15. BM11-31-7-533-479 GUIDE RAIL 1 0 91.76 91.76 |
| 16. BM11-31-7-533-489 GUIDE RAIL 1 0 66.30 66.30 |
| 17. BM11-31-7-533-483 CHAIN TENSIONER 1 0 69.30 69.30 |
| 18. BM11-31-7-533-488 BOLT 1 0 16.84 16.84 |
| 19. BM11-31-7-548-033 OIL SPRAYING NOZZLE 1 0 39.38 39.38 |
| 20. BM11-14-1-439-717 GASKET F TIMING CASE 1 1 39.93 39.93 |
| 21. BM11-12-7-513-194 GASKET SET, CYLINDER 1 2 134.51 134.51 |
| 22. BM11-12-7-513-195 GASKET SET, CYLINDER 1 2 134.51 134.51 |
| 23. BM11-13-7-545-293 GASKET STEEL 1 1 54.88 54.88 |
| 24. BM11-43-1-287-541 O-RING 1 -1 5.40 5.40 |
| 25. BM11-13-7-506-774 GASKET STEEL 1 2 45.56 45.56 |
| 26. BM11-36-7-546-379 O-RING 4 8 7.36 29.44 |
28. BM11-14-7-506-424 GASKET STEEL 1 2 28.12 28.12 |
| 29. BM11-14-7-506-425 GASKET STEEL 1 4 28.12 28.12 |
| 30. BM11-14-7-558-914 SHAFT SEAL 1 0 88.30 88.30 |
| 31. BM11-21-7-528-438 SPROCKET 1 0 118.25 118.25 |
| 32. BM82-14-1-467-704 COOLANT 2 29 23.80 47.60 |

PARTS: $ 2042.70 |
| LABOR: $ 5933.00 |
| BULK FLUIDS: $ 5.00 |
| MISCELLANEOUS MATERIALS: $ 49.92 |
| TAX: $ 125.86 |
| ================ |
| TOTAL: $ 8156.48 |

This is the dealer quote for timing chain and parts .....^

[epdarks]

FIFTY FIVE HOURS OF LABOR ?????????????????????????

Tell that dealer to eat shit.

[BWK]

Originally Posted by epdarks

FIFTY FIVE HOURS OF LABOR ?????????????????????????

Tell that dealer to eat shit.

I would love to tell them that. My problem is intermittent at the moment.
My question is...

Even if I do these repairs, I have 191000 miles on the car. the interior is immaculate and the outside is in great shape as well. I have also had the eccentric shaft done under warranty on this one.

At what point does it make more sense to get a used engine from BMRparts?
My indy shop seems a little scared to tackle the timing chain.

I could get one from BMRparts and it would have 60-70,000 miles on it. They also offer a lifetime engine warranty for 35% of the cost of the engine.

The cost of the engine and installation at the dealer is about $6,000

any advice for this frustrated BMW owner who did everything by the book and is now faced with this?