17RX350F

Just had my 2 year old 2017 AWD RX Fsport in for inspection today and Lexus told me my water pump started to leak so they will be replacing it under warranty. It only has 17k miles!

No other issues so far except 3/32 front and 6/32 back for tires which are the 235/55/R20 Michelin Premier LTX. Rotated at 5, 10, and was going to be today at 17k, seems they shouldn't wear that fast?

Anyone else have water pump issues on their 4th gen RX?

Also, any suggestions for new tires?

aznkorboi

Wow. Any symptoms? How do you know a water pump is failing?

mikemu30

Our Michelins are wearing a bit better than yours. We are at 25k and I expect another 10k or so before they will need to be replaced. At that point I will consider the same Michelins or perhaps a Toyo all season.

yardbird88

Before you go shopping for new tires, you should try to talk to your dealer's advisor. I was in similar conditions, at 15K, my 2 front tires were down to almost 2/32 while the rear tires were a bit better. Had the RX450h serviced at 5k & 10k free at Longo Lexus. During the recall at 15k, I questioned the advisor about the wear of the tires and asked her to take measurement & pictures and sent it to Michelin for warranty claims. Surprisingly she came back 2 days later with a deal of me paying 25% for 4 new Michelins. I tried another advisor at the same dealer before and he refused to even try. So It depends on your luck sometime. As far as water pump, there was no issue. Did you see any sign of leaking when you park?

17RX350F

Thanks for your experience with the two different advisors, mine would not budge on this as I missed my 15k rotate by 2k miles! I will try another.

No leakage from water pump that I could see or any indication, it was a shock to me.

This picture below was on my inspection report but not sure what part it refers to, does anyone know, is this the leak they are talking about?

Cocal

I think the pink colour around the opening is coolant and this is what the advisor may have called a leak, to me it looks more like seepage, but it's good that he caught it.
Any mechanical part may fail for a number of reasons, and it's not normal, that's why they are replacing it.

skiracer

My water pump got replaced at 55K miles which is out of warranty. He said i was leaking, but i never saw any leaks. So, if they want to give me a new water pump for no charge, i have no complaints.

However, they replaced it at no charge to me. Wonder if its some sort of recall or TSB.

crislbcG35

I have a 2016 RX and my water pump was replaced under warranty for the same reason. Took it in for service and adviser stated: UPON INSPECTION FOUND WATER PUMP LEAKING COOLANT ~ ~FOUND WATER PUMP SEALS WITH POOR MATERIAL CAUSE COOLANT TO LEAK ~ ~REPLACED WATER PUMP ASSEMBLY

yardbird88

Where is that location in a board view? I should check it myself because I don't go to dealer for costly services but use my local mechanic for services.

ravenuer

My Lexus powertrain warranty is for 72 months or 70k miles. Were you past 72 months?

Rarebird

Hi! I realize it’s an older post and Lexus RX models are incredibly reliable but still wanted to post that my 3 year old 2017 Lexus RX 350 was in for routine maintenance At 25k and they found water pump leaking. Diagnosis is ‘water pump leaking, water pump assembly and / or a gasket using the engine support’. This was fixed under warranty.

jcg0324

A water pump is a mechanical device and thus can go bad at any time. The manufacturer should warrant a water pump for at least 100,000 miles. This is just my opinion. It would be advised for the car owner to do a coolant flush at least every 50,000 miles or 6 years. All fluids in a car turn to sewer after time. Moisture seeps in little by little .... year after year. This also applies to brakes and transmission systems. The moisture turns the hydraulic fluid into sludge. What the manufacturer suggests is overkill. I don't have magic number. Maybe 5 years or 40000 miles. 50000 miles

Uzcanadian

It’s been an issue with the 3.5 since it’s original release back in the mid 2000’s. it wouldn’t be so bad if Lexus didn’t have to pull the engine to fix it.

Nail34

Had my water pump replaced last week at the 30k inspection. '17 RX

exonw

Wow, wondering what's the stats of water pump failures in 4th Gens which is expensive to repair out of warranty.

My MY-2017 just hit 96K km (~60K mi) but so far don't see any traces of leaks in my garage. I guess I'll find out as It's due for Service #3 with coolant & trans fluid recommended replacement interval.