05-24-2021, 01:15 AM | #1 |
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Is this going to be a problem?
I was doing the ATF change and happened to see this. Not sure what is leaking as the nut was not loose. Anyone know if I have a problem coming soon?
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05-24-2021, 10:43 AM | #2 |
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Hmm, not sure I can offer too much help on the issue you posted, but I'll take a shot. Where exactly is that first image? Is that clamp the one that holds the catalytic converter to the turbo outlet? If so, you can get that clamp and washer pretty cheap and just replace them. When I installed my FabSpeed sport cat, I bought an new clamp and washer to replace the old one. It's not too difficult of a job - especially if you have access to a lift.
As for that last picture, it looks like some debris took a chunk out of your exhaust pipe and it's corroding around the damage - either that or just a really bad weld. Not sure where in the exhaust that pipe that is, but again replacing that section shouldn't be that difficult of a job. If you had an exhaust leak, I think you would notice an exhaust smell, unusual exhaust sound, or if you had a leak from the clamp that connects the cat to the turbo, you'd probably get a CEL from the O2 sensor. I do have a question for you though: How many miles are on your car? And how was the tans after changing your fluid? Any slipping or other issues? I'm at 90k miles and I've been debating on whether or not to change the ATF on my car. I asked the BMW dealership and they said they recommended not changing the fluid as it could result in the transmission slipping and needing replacement. I went for a second opinion at an indy BMW mechanic and he said that if I change it before 100k miles, it would likely be ok, but said that if I was over 100k miles I should probably just leave it. I want the car to last a long time, but can't seem to get a firm answer on whether or not I should change the ATF... |
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05-24-2021, 11:30 AM | #3 |
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His picture is the downpipe to rear exhaust clamp connector. It looks like regular moisture build up has happened a bit there.
Do you commute in short trips that possibly does not allow your exhaust to completely burn off/ evaporate all the moisture? I don't think this is really a big deal but if you want to make sure you have a good connection, just loosen up that clamp ( size 16 or 17 metric I believe) and make sure the pipes mate up properly. Other than that maybe an expert in moisture corrision on exhaust pipes can chime in...
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05-24-2021, 06:47 PM | #4 |
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My aftermarket DP (HJS Euro 6 DP) and OEM clamp (new at the time of DP install) has the same corrosion/build up after 2.5 years. I wouldn't worry about it.
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05-24-2021, 08:59 PM | #5 | |
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Here are some pics of the pan and you can see some metal stuff on the magnet. I used a towel to see if there were any large pieces of metal but it's just very sludgey. |
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05-24-2021, 09:04 PM | #6 | |
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05-24-2021, 09:07 PM | #7 |
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I was hoping it wasn't going to be a problem. I don't plan on changing the downpipe or exhaust so that's a relief!
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05-24-2021, 09:36 PM | #8 | |
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After the fluid maintenance I feel that maybe everything overall feels slightly smoother, but nothing night and day and could be a placebo effect. I feel that overall the ZF transmission is pretty solid and smooth and I have zero regrets going automatic. |
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