Quote:
Originally Posted by AllBlackBimmer
I appreciate your feedback.
I’ve had my car since I bought it used with 25k miles and 2.5 years old.
Under CPO around 50k miles my thermo failed open and was replaced under warranty.
I have had not had issues since.
However, we all know our cars can be fine one day and the next the WP dies and leaves us stranded. I really don’t want that to happen to me, and I even have AAA.
My car is now at 107k miles. Drives great and I also plan on my keeping it until the wheels fall off. I want to proactively replace the WP to prevent from being stranded. I know it is probably a waste of money, but would also give me piece of mind. I figure, if doing the pump, why not just do the thermo again too - once again, probably a waste of money. I didn’t realize the thermo comes out first, so maybe I should reconsider the thermo replacement. ... is getting to just the thermo “significantly” easier than the pump? Meaning, if I don’t replace it now, will I deal with the same labor if/when it dies?
I’m not doing this work myself, I’m playing a guy I know who is a certified bmw tech to do it as a side job.... not sure what he would charge me for just the thermo vs. just doing my WP/thermo together now and just being done with it. But, the thermo is like $50-60... not expensive at all, so Buying the thermo now and doing it with the WP would save me money in labor, since I would be doing it all at once. I’d pay more than $60 in labor to just replace the thermo if it failed.
My car was 107k... is a 2008, so 10+ years old. Spent first 2.5 years of its life in hot and sunny Florida before I bought it and had it brought to PA.
I don’t want to just “waste” money, but look at it as, the WP is really the only thing I’m worried about that would leave me stranded on the side of the road. So “wasting” money on the WP is a better ‘investment’ than any other type of maintenance or leaky gaskets. I know you do your own maintenance, so for you it is a little different. The WP job is beyond my skills and I don’t have the proper tools or lift, etc.
... as far as the hoses, I will probably just get the u-shape one that connects WP/thermo... you said you would replace the plastic fitting with a aluminum one, which one would that be? Fitting that connects the WP/thermo or?
...how many wp’s Have you been through? I would think with your long commute that means less hot/cold cycles which MAY help your longevity > just a guess?
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I've owned my car since new. I ordered it and it was delivered with 3 miles on the odometer.
My original pump died at 149,521 miles. About 10 months before, I had bought a BT scan tool to diagnose the SES light triggered by the t-stat. After I let the t-stat codes play out over Winter, Summer then the next Fall, I replaced the t-stat. A few months after that in May 2011 found the WP trouble codes. No one before May of 2011 had posted anything about trouble codes for the WP, so I guess I was the first to discover them, or at least post on the internet about them. I was getting the 2E81 code for low pump speed. I got several instances of the code; the BT scan tool tags the miles as to when the code is triggered, but I didn't know what it really meant (see below for the code details). I was thinking about replacing the pump, but it was $450 and that was a lot of money on a guess. The pump failed on a 100 deg. F day in July 2011. When I replaced the pump there was just one
sorta DIY for it posted by JamesUK, but he didn't discuss why he replaced the pump. When I opened the back of the old pump, the electronics were overheated. The conformal coating that are sprayed on electronics to protect them, was melted and displaced (it boiled off and stuck to the inside of the back-plate. I worked in military electronics manufacturing early in my career, so I was quite familiar with what good electronics look like and fried electronics look like.
So to answer your question (I thought I posted this already) I've replaced the t-stat and pump just one, and both have gone well over 200,000 miles since then; so I'm still on the 1st replacements.
The aluminum fitting is on the hose that goes from the t-stat up to the oil filter housing. There are several threads on the subject.
https://www.ebay.com/itm/MAMBA-BMW-N...-/263430190311