Car running extremely rough in rain.

TylerMcCraw · 05-08-2018, 09:48 PM

Every time it pours down rain and I drive my car, It begins to get extremely loud and it seems that the downpipe rattles up against the car, And no this isn't because of my modifications as the car still does this bone stock. What could be the issue here, Any ideas??

vooonoo · 05-09-2018, 06:59 AM

How old is your car?

TylerMcCraw · 05-09-2018, 11:54 AM

It's a 2013, 60k miles.

qdogg · 09-12-2018, 06:31 PM

Same thing has happened to me. This is the second time.

SteelCT · 09-12-2018, 07:44 PM

I was actually noticing this today. Ran fine just super rough/rumbly

Billfitz · 09-12-2018, 09:18 PM

Try this on your spark plug wires:
https://www.amazon.com/Gunk-M1306-Wi.../dp/B00200CBD2

upsidedownfunnel · 09-12-2018, 11:43 PM

Do you have an intake or aftermarket air filter? Could be your MAF.

Or do you still have your engine cover or have you had work done on your spark plugs or ignition coils? It could be water getting into your ignition coils.

qdogg · 09-13-2018, 08:23 PM

Engine is stock. Previously had Dinan Sport but removed.
I took it to dealer last time and they replaced the spark plugs.
They noted moisture is collecting in the charge air cooler.
They also hinted that this is normal but I find it ridiculous to believe that a german luxury car cannot be driven aggressively in the rain. I usually don't drive my car in the rain or snow but should not have to worry if i do.

Billfitz · 09-13-2018, 09:52 PM

Quote:

Originally Posted by qdogg

I find it ridiculous to believe that a german luxury car cannot be driven aggressively in the rain.

It's more likely the age of the plug wires causing the problem. The insulation loses its effectiveness when exposed to engine heat for a few years. The wire dryer spray I linked to will help if that's the problem. Getting new plug wires is an option too.

TylerMcCraw · 10-30-2018, 12:38 PM

Update: Pretty sure the motor just seized

tuco44 · 10-30-2018, 04:51 PM

Quote:

Originally Posted by TylerMcCraw

Update: Pretty sure the motor just seized

Are you telling us that you have not had this problem checked out by a responsible dealer/shop since you originally posted the problem on May 8 this year? Almost 6 months ago?

TylerMcCraw · 10-30-2018, 06:59 PM

Quote:

Originally Posted by tuco44

Are you telling us that you have not had this problem checked out by a responsible dealer/shop since you originally posted the problem on May 8 this year? Almost 6 months ago?

They checked it out and said they couldn't reprobate the issue, Well now I guess we will know what went wrong soon.

eksigned · 11-01-2018, 06:23 PM

You're pretty sure the motor seized? If it's seized, then it shouldn't turn over. Don't keep trying? Let us know. Very interesting...

Zanity · 11-01-2018, 06:50 PM

Wait, didn't you just towed your car to the dealer for stalling on the road in gear ???

Dylantm · 11-02-2018, 05:17 AM

Quote:

Originally Posted by Billfitz

It's more likely the age of the plug wires causing the problem. The insulation loses its effectiveness when exposed to engine heat for a few years. The wire dryer spray I linked to will help if that's the problem. Getting new plug wires is an option too.

While that may be true on some vehicles. Most newer vehicles use coil-on-plug systems. Doing away with the need of plug wires. My 06 E90 didn't have wires. The f30 doesn't either.

cfm56d7b · 11-05-2018, 07:11 PM

Quote:

Originally Posted by eksigned

You're pretty sure the motor seized? If it's seized, then it shouldn't turn over. Don't keep trying? Let us know. Very interesting...

Very unusual problem. If the motor seized, the root cause would be very valuable for this forum. OP, please update when you can.

Billfitz · 11-05-2018, 08:50 PM

Quote:

Originally Posted by Dylantm

While that may be true on some vehicles. Most newer vehicles use coil-on-plug systems. Doing away with the need of plug wires.

I'm going from experience with previous cars. My BMW is way too low in mileage for me to have even given a thought to plug replacement or much of anything beyond oil and filter changes.
OP, I can't think of anything that would cause a seized engine that's related to wet weather.

rjd_F30 · 11-05-2018, 08:58 PM

Quote:

Originally Posted by Billfitz

OP, I can't think of anything that would cause a seized engine that's related to wet weather.

Hydrolock? Or does that not fall under the 'seized engine' umbrella.

Billfitz · 11-05-2018, 09:06 PM

Water in the air intake will make the engine run bad, and might even cause it to shut down, but it wouldn't likely cause it to seize. That's usually from blown bearings, a thrown rod, broken timing chain or other major damage to the engine. Enough water into cylinders could cause bent rods, but I doubt if rain getting into the air intake could cause that. Driving through three feet of water might.

The Airman · 11-05-2018, 09:58 PM

It's been monsoon after monsoon here in PA, and PA is now one of the top ten states in flooded vehicles in the US, but hurricane Florence added 107,000 flooded vehicles in the Carolinas, where the OP lives.

Maybe he drove through something he shouldn't have. As they say around here, "turn around, don't drown".

https://www.automotive-fleet.com/318...s-increases-47

rjd_F30 · 11-06-2018, 06:52 AM

Quote:

Originally Posted by Billfitz

Water in the air intake will make the engine run bad, and might even cause it to shut down, but it wouldn't likely cause it to seize. That's usually from blown bearings, a thrown rod, broken timing chain or other major damage to the engine. Enough water into cylinders could cause bent rods, but I doubt if rain getting into the air intake could cause that. Driving through three feet of water might.

Semantics I guess. The delineation between seized, blown etc. is not very well observed, so I guess it all counts. Either way though, like you said, I can't think of anything other than substantial amounts of water in the air intake that would cause an engine to run poorly in the wet. I'm also not totally convinced that the bad running when wet issue is even tied to the engine's death at all. We'll see whenever we learn what happened.

dandurante · 06-10-2019, 06:37 PM

Funny enough, my car would do the same thing when it rained in the last few months... My motor seized on Friday out of nowhere. Just stalled while I was pulling into a parking space and turned off... Verified that it's seized because I put a breaker bar on the crank it will not budge at all.

Waiting to hear back from the dealer... From what I've read BMW will not cover this.

05-08-2018, 09:48 PM	#1
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	Car running extremely rough in rain. Every time it pours down rain and I drive my car, It begins to get extremely loud and it seems that the downpipe rattles up against the car, And no this isn't because of my modifications as the car still does this bone stock. What could be the issue here, Any ideas?? __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
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05-09-2018, 06:59 AM	#2
vooonoo ¯\_(ツ)_/¯ 537 Rep 1,000 Posts Drives: f30 328 Join Date: Nov 2017 Location: nj iTrader: (0) Garage List 2014 f30 328i [0.00]	How old is your car?
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05-09-2018, 11:54 AM	#3
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	It's a 2013, 60k miles. __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
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09-12-2018, 06:31 PM	#4
qdogg New Member 5 Rep 12 Posts Drives: 2014 428xi M Sport Estoril Blu Join Date: Apr 2017 Location: Mount Airy, MD iTrader: (0)	Any update on this? Same thing has happened to me. This is the second time. __________________ -2014 428xi M-Sport Estoril Blue w/ Black Dakota Leather, Premium/Technology/Cold Weather, M pedals, M rear diffuser, 435 dual exhaust, debadged, 20% 3m tint, carbon fiber wrapped interior trim, KUDA phone mount
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09-12-2018, 07:44 PM	#5
SteelCT Private 27 Rep 65 Posts Drives: 2014 328i xDrive; 2020 X3 Join Date: Aug 2017 Location: PA iTrader: (0)	I was actually noticing this today. Ran fine just super rough/rumbly
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09-12-2018, 09:18 PM	#6
Billfitz Lieutenant General 8245 Rep 16,088 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Try this on your spark plug wires: https://www.amazon.com/Gunk-M1306-Wi.../dp/B00200CBD2
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09-12-2018, 11:43 PM	#7
upsidedownfunnel Colonel 1999 Rep 2,499 Posts Drives: 2014 335i Join Date: Jul 2017 Location: SoCal iTrader: (4) Garage List 2014 BMW 335i [0.00]	Do you have an intake or aftermarket air filter? Could be your MAF. Or do you still have your engine cover or have you had work done on your spark plugs or ignition coils? It could be water getting into your ignition coils.
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09-13-2018, 08:23 PM	#8
qdogg New Member 5 Rep 12 Posts Drives: 2014 428xi M Sport Estoril Blu Join Date: Apr 2017 Location: Mount Airy, MD iTrader: (0)	Engine is stock. Previously had Dinan Sport but removed. I took it to dealer last time and they replaced the spark plugs. They noted moisture is collecting in the charge air cooler. They also hinted that this is normal but I find it ridiculous to believe that a german luxury car cannot be driven aggressively in the rain. I usually don't drive my car in the rain or snow but should not have to worry if i do. __________________ -2014 428xi M-Sport Estoril Blue w/ Black Dakota Leather, Premium/Technology/Cold Weather, M pedals, M rear diffuser, 435 dual exhaust, debadged, 20% 3m tint, carbon fiber wrapped interior trim, KUDA phone mount
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10-30-2018, 12:38 PM	#10
TylerMcCraw Second Lieutenant 154 Rep 232 Posts Drives: 2013 BMW F30 Join Date: Jan 2015 Location: Charlotte NC iTrader: (0)	Update: Pretty sure the motor just seized __________________ 2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
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11-01-2018, 06:23 PM	#13
eksigned Lieutenant 139 Rep 467 Posts Drives: 4er Join Date: Oct 2011 Location: WA iTrader: (0)	You're pretty sure the motor seized? If it's seized, then it shouldn't turn over. Don't keep trying? Let us know. Very interesting...
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11-01-2018, 06:50 PM	#14
Zanity Major 731 Rep 1,045 Posts Drives: 428i Join Date: Oct 2018 Location: BC, Canada iTrader: (0)	Wait, didn't you just towed your car to the dealer for stalling on the road in gear ???
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11-05-2018, 09:06 PM	#19
Billfitz Lieutenant General 8245 Rep 16,088 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Water in the air intake will make the engine run bad, and might even cause it to shut down, but it wouldn't likely cause it to seize. That's usually from blown bearings, a thrown rod, broken timing chain or other major damage to the engine. Enough water into cylinders could cause bent rods, but I doubt if rain getting into the air intake could cause that. Driving through three feet of water might. Last edited by Billfitz; 11-05-2018 at 09:22 PM..
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11-05-2018, 09:58 PM	#20
The Airman Second Lieutenant 171 Rep 257 Posts Drives: 2021 i3s Join Date: Feb 2018 Location: Pittsburgh iTrader: (0)	It's been monsoon after monsoon here in PA, and PA is now one of the top ten states in flooded vehicles in the US, but hurricane Florence added 107,000 flooded vehicles in the Carolinas, where the OP lives. Maybe he drove through something he shouldn't have. As they say around here, "turn around, don't drown". https://www.automotive-fleet.com/318...s-increases-47 __________________ 2021 i3s AC Schnitzer BMW CCA #67486
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06-10-2019, 06:37 PM	#22
dandurante New Member 12 Rep 15 Posts Drives: 2013 F30 328i X Join Date: Aug 2017 Location: Stamford/Greenwich iTrader: (0)	Funny enough, my car would do the same thing when it rained in the last few months... My motor seized on Friday out of nowhere. Just stalled while I was pulling into a parking space and turned off... Verified that it's seized because I put a breaker bar on the crank it will not budge at all. Waiting to hear back from the dealer... From what I've read BMW will not cover this.
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