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2018 GA - heavy smoke / thick exhaust

499 Views 14 Replies 7 Participants Last post by  PHXRider
welp ... add yet another thread to the ever growing list

previous threads:

Poll:

--------

now my story

I bought the 2018 used in early 2021 with a tad less than 14,000 miles on it. About 4 months after I bought it, I added the BrenTune. Rode about 15K miles in the first year, and the rest of miles brings the story current with the mileage being 34378.

I am not a DIYer so the dealer (not an actual BMW dealer) does all the maintenance / service on schedule. The dealer in question is RideNow - the location doing the service is the Chandler location because that is where the Euro technicians are for the Phoenix metro area.

Few more data points

Prepaid maintenance for 6 services or March 2025 which ever comes first
Extended warranty unlimited mileage and March 2024.

so yes the 16K was done as well as the 32K and oil changes in there when needed. Minor recall work on the rear shock; transmission not impacted by recall.

About 7 weeks ago I was prepping for my big summer ride - this year was supposed to be to the East coast and back a brisk 6K miles door to door.
So I timed the oil change and the 32K service to coincide and took it in. Things were fine. Rode the bike to Joshua Tree and back.. no problems.

We are now about a month ago.

Back home about a week later, ride to the office (normally work from home) and it was an uneventful 20 minute ride. Parked it. Went to lunch at a nearby pizza spot, came out started it up and a brief puff of exhaust came and went. I didnt think much of it, plenty of vehicles in parking lot and truck starting right next to me. I rode from the pizza spot to my friends house about another 20 minutes away. Hung out for a couple of hours. Started the bike, no problem, back home I head. Now Im about 35 40 minutes from the house.

Traffic starts to build about 20 minutes from the house, so it is starting to become stop and go. About 3 miles from this spot I start seeing thick exhaust from the bike in my rear view mirror. NOw it could have been there previously but with traffic slowing, I was really checking the mirrors. Stop and go traffic is now a thing on the interstate, and Im sitting in a very thick cloud of exhaust. Panic hits. But the bike seems to be running and I still have power. I get to the shoulder and unfortunately no exit in sight. I ride the shoulder passing the stopped traffic , not fast, but surely also not stopped. The house is now like 10 miles away. I limp it home, the exhaust thickness varies but much thicker than anything Ive ever seen before.

Park it, kick it in the tire - stupid BMW.

Next morning call the dealer and make an appointment, they are a week out before I can get a slot - that would be 2 weeks before Im supposed to leave. Setup the appointment and start reading all the horror stories here.

Day 1 diag started; about what looks to be a quart of oil in the air box; asked if I recently had dropped the bike
Day 2 - 6 not much from them; excuses about 2 techs leaving, backup; you know the drill
Day 10 - finally get them to state it "needs valves" and the secondary switching valve went bad

a bunch of hassle with warranty and more delays

fast forward day 34 - bike is back home

parts list / invoice

6 hours of diagnoses and maybe tear down

13717712317 - air filter replaced
11737672759 - valve x 6
11127674654 - rubber bushing x 12
11127728760 - gasket set, cylinder head
5w40 - 430222 castrol 5w40 synthetic
11737694376 - switching valve, secondary

3.9 hours replace valves
oil change

they billed warranty 2622.67; I paid 0

oddly no mention of spark plugs or a new oil filter

welp there you go, a win for warranty and me wondering why I bought a BMW and if I'll keep it past March 2024.

oh the big ride? Now scheduled for July 10 -- should be nice and hot / humid. Original departure date scheduled May 1st.
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welp ... add yet another thread to the ever growing list

previous threads:

Poll:

--------

now my story

I bought the 2018 used in early 2021 with a tad less than 14,000 miles on it. About 4 months after I bought it, I added the BrenTune. Rode about 15K miles in the first year, and the rest of miles brings the story current with the mileage being 34378.

I am not a DIYer so the dealer (not an actual BMW dealer) does all the maintenance / service on schedule. The dealer in question is RideNow - the location doing the service is the Chandler location because that is where the Euro technicians are for the Phoenix metro area.

Few more data points

Prepaid maintenance for 6 services or March 2025 which ever comes first
Extended warranty unlimited mileage and March 2024.

so yes the 16K was done as well as the 32K and oil changes in there when needed. Minor recall work on the rear shock; transmission not impacted by recall.

About 7 weeks ago I was prepping for my big summer ride - this year was supposed to be to the East coast and back a brisk 6K miles door to door.
So I timed the oil change and the 32K service to coincide and took it in. Things were fine. Rode the bike to Joshua Tree and back.. no problems.

We are now about a month ago.

Back home about a week later, ride to the office (normally work from home) and it was an uneventful 20 minute ride. Parked it. Went to lunch at a nearby pizza spot, came out started it up and a brief puff of exhaust came and went. I didnt think much of it, plenty of vehicles in parking lot and truck starting right next to me. I rode from the pizza spot to my friends house about another 20 minutes away. Hung out for a couple of hours. Started the bike, no problem, back home I head. Now Im about 35 40 minutes from the house.

Traffic starts to build about 20 minutes from the house, so it is starting to become stop and go. About 3 miles from this spot I start seeing thick exhaust from the bike in my rear view mirror. NOw it could have been there previously but with traffic slowing, I was really checking the mirrors. Stop and go traffic is now a thing on the interstate, and Im sitting in a very thick cloud of exhaust. Panic hits. But the bike seems to be running and I still have power. I get to the shoulder and unfortunately no exit in sight. I ride the shoulder passing the stopped traffic , not fast, but surely also not stopped. The house is now like 10 miles away. I limp it home, the exhaust thickness varies but much thicker than anything Ive ever seen before.

Park it, kick it in the tire - stupid BMW.

Next morning call the dealer and make an appointment, they are a week out before I can get a slot - that would be 2 weeks before Im supposed to leave. Setup the appointment and start reading all the horror stories here.

Day 1 diag started; about what looks to be a quart of oil in the air box; asked if I recently had dropped the bike
Day 2 - 6 not much from them; excuses about 2 techs leaving, backup; you know the drill
Day 10 - finally get them to state it "needs valves" and the secondary switching valve went bad

a bunch of hassle with warranty and more delays

fast forward day 34 - bike is back home

parts list / invoice

6 hours of diagnoses and maybe tear down

13717712317 - air filter replaced
11737672759 - valve x 6
11127674654 - rubber bushing x 12
11127728760 - gasket set, cylinder head
5w40 - 430222 castrol 5w40 synthetic
11737694376 - switching valve, secondary

3.9 hours replace valves
oil change

they billed warranty 2622.67; I paid 0

oddly no mention of spark plugs or a new oil filter

welp there you go, a win for warranty and me wondering why I bought a BMW and if I'll keep it past March 2024.

oh the big ride? Now scheduled for July 10 -- should be nice and hot / humid. Original departure date scheduled May 1st.
The only good thing about your situation is you’re still on warranty.
But yeah, the inconvenience and time wasted on these K1600 oil burners is definitely not what should be expected from a touring bike. I remember years ago I said this was getting out of hand, and others called me out on it saying they were just isolated incidents, and that far and wide K1600’s are solid bikes. The oil burning threads would say otherwise.

Hope your issue is solved.

I give it 2 weeks (or less) until someone else posts about an oil burning issue.
@atc250r And the real reality hasn’t changed since you’ve made this a crusade — they are isolated incidents in the overall population of K16s.

Owners with problems find a megaphone to share with the world their frustrations and problems. It’s human nature. That megaphone is the Internet and dedicated forums. Yes, the K1600 forum is ground zero.

I say this with the first hand experience of being in the BMW trenches of an engine replacement. In that journey, I learned a lot about what’s real, and what isn’t. Couple that with attending lots of events with lots of K1600s and engaging in lots of conversations, the picture is quite different than you’re trying to paint.
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I am very suspicious that 6 valves required replacement.
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I am very suspicious that 6 valves required replacement.
These appear to be the tiny valves in the cam cover that feed into the secondary air system, which several riders have of course simply deleted.

The theory appears to be that if the secondary air switching valve fails, the system can feed exhaust pressure back into the cam cover once the 6 reed valves get contaminated : -

........ Dirty secondary air valves in the valves cover

Personally, I'm not entirely convinced that this isn't patching up a symptom without addressing the fundamental problem, but what do I know.
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@atc250r And the real reality hasn’t changed since you’ve made this a crusade — they are isolated incidents in the overall population of K16s.

Owners with problems find a megaphone to share with the world their frustrations and problems. It’s human nature. That megaphone is the Internet and dedicated forums. Yes, the K1600 forum is ground zero.

I say this with the first hand experience of being in the BMW trenches of an engine replacement. In that journey, I learned a lot about what’s real, and what isn’t. Couple that with attending lots of events with lots of K1600s and engaging in lots of conversations, the picture is quite different than you’re trying to paint.
I guess the only “crusade” I’m on is one of wanting BMW to correct this issue, so I’d be comfortable buying a new bike. Is this wrong, that I don’t help cover it up and bury my head in the sand?
If we all just accepted it as “isolated incidents” and ignored it, BMW will never correct it. Same goes for the shocks that blow seals in cold weather. It’s a BIG issue and BMW needs to step up and fix it.

And about the picture I’m trying to paint? Trust me, there will be a new post in a couple weeks that will paint the picture all on its own.

Really John, all I want is for BMW to get to the bottom of this and quit selling $30k oil burners. Is that too much to ask?
These appear to be the tiny valves in the cam cover that feed into the secondary air system, which several riders have of course simply deleted.

The theory appears to be that if the secondary air switching valve fails, the system can feed exhaust pressure back into the cam cover once the 6 reed valves get contaminated : -

........ Dirty secondary air valves in the valves cover

Personally, I'm not entirely convinced that this isn't patching up a symptom without addressing the fundamental problem, but what do I know.
Correct not the engine valves but the reed valves in the cam cover.

Also correct; I don't think this repair actually solved any fundamental problem, but rather a bandaid to a symptom. Most likley this bike will find a new owner come 2024.
The only good thing about your situation is you’re still on warranty.
.....

Hope your issue is solved.
An EXTENDED warranty that I paid for, not a factory warranty.

I doubt the issue is fully resolved, I don't have a lot of confidence at this point in the bike. I half expect to be somewhere in Tennessee and have to fly home.
I'll be waiting to hear if your airbox stops collecting oil after this "fix".
I guess the only “crusade” I’m on is one of wanting BMW to correct this issue, so I’d be comfortable buying a new bike. Is this wrong, that I don’t help cover it up and bury my head in the sand?
If we all just accepted it as “isolated incidents” and ignored it, BMW will never correct it. Same goes for the shocks that blow seals in cold weather. It’s a BIG issue and BMW needs to step up and fix it.

And about the picture I’m trying to paint? Trust me, there will be a new post in a couple weeks that will paint the picture all on its own.

Really John, all I want is for BMW to get to the bottom of this and quit selling $30k oil burners. Is that too much to ask?
I'm not trying to cover up and bury anything. Clearly, some bike do have consumption problems. I was bit and I'm certainly not alone. But sample size matters. The vast majority of K1600 owners don't spend time on forums. Most K1600 owners probably don't know that this K1600 forum exists. That's been my experience at different rallies/events around the US. But develop a problem, and fingers go wild searching the Internet and finding places to vent. Don't you find it interesting that almost all owners who come here to complain about oil seem to disappear after a few posts?

BMW have always produced quirky bikes. My RT burned oil, but my LT didn't. My first K16 engine burned oil, but my new engine consumes almost none. But there is something incredibly special about them that is worth putting up with the hassle. What bike other than a K1600 could comfortably complete an IBA CC50/SS2000, continue ride spirited at speed through Southern Appalachia 2-lanes at the TTD event, and then easily sprint back across the US in less than 3 days? Tell me, what bike competing bike should I buy instead??

As a complete package, that fictitious bike doesn't exist. So if you want the unique experience, you shake out whatever problems might be there during early warranty, and spend the next few years having the time of your life. BMW isn't ever going to produce Japanese like bikes. That's not making excuses -- it's simple reality. They have their own way of doing things that complaining isn't going to change. So if you want the benefit, you accept the costs and work around them. The method works.
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Storage probably isn't to par but performance-wise I'd go with the Kawasaki Concors 14.
An EXTENDED warranty that I paid for, not a factory warranty.

I doubt the issue is fully resolved, I don't have a lot of confidence at this point in the bike. I half expect to be somewhere in Tennessee and have to fly home.
I agree with you, I think that they fixed the symptom (for now), and not the cause.

I'll be waiting to hear if your airbox stops collecting oil after this "fix".
Me too

I'm not trying to cover up and bury anything. Clearly, some bike do have consumption problems. I was bit and I'm certainly not alone. But sample size matters. The vast majority of K1600 owners don't spend time on forums. Most K1600 owners probably don't know that this K1600 forum exists. That's been my experience at different rallies/events around the US. But develop a problem, and fingers go wild searching the Internet and finding places to vent. Don't you find it interesting that almost all owners who come here to complain about oil seem to disappear after a few posts?

BMW have always produced quirky bikes. My RT burned oil, but my LT didn't. My first K16 engine burned oil, but my new engine consumes almost none. But there is something incredibly special about them that is worth putting up with the hassle. What bike other than a K1600 could comfortably complete an IBA CC50/SS2000, continue ride spirited at speed through Southern Appalachia 2-lanes at the TTD event, and then easily sprint back across the US in less than 3 days? Tell me, what bike competing bike should I buy instead??

As a complete package, that fictitious bike doesn't exist. So if you want the unique experience, you shake out whatever problems might be there during early warranty, and spend the next few years having the time of your life. BMW isn't ever going to produce Japanese like bikes. That's not making excuses -- it's simple reality. They have their own way of doing things that complaining isn't going to change. So if you want the benefit, you accept the costs and work around them. The method works.
I agree John, the K1600 is great as a high speed tourer. It’s why I own the bike.
I agree John, the K1600 is great as a high speed tourer. It’s why I own the bike.
I respect your thoughts on oil consumption and other K1600 problems. For me, it falls into the category of "it isn't going to change". For example, when you look at the whole 2022+ TFT debacle, it points to and reinforces the arrogance of BMW's approach to their products.

For me, it's one of those things where you either accept what is, or move one. If I felt there was something I could personally do to change it, I would. But life has only so much bandwidth, so I try to pick my battles carefully. However, If you want to continue going down the path of pursuing BMW reform, I won't interfere. :)
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I doubt the issue is fully resolved, I don't have a lot of confidence at this point in the bike. I half expect to be somewhere in Tennessee and have to fly home.
If the oil issue was the breather system then I expect that you'll join the ranks of the majority that don't have oil consumption issues.
Storage probably isn't to par but performance-wise I'd go with the Kawasaki Concors 14.
No factory cruise is a deal breaker for me. I am looking at the Yamaha FJR as perhaps the next replacement.
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