High surface rust on front suspension, normal?
#1
Intermediate
Thread Starter
High surface rust on front suspension, normal?
Bought my RDX with 4 miles on the odometer. Vehicle has only been in central FL for 1600 miles. Changed out my wheels and this is what I see on both sides in the front; the bolts and such are highly corroded also. LKAS, ACC, brake mitigation, etc lights are all on for last 4-500 miles. Anyone has similar issues?
#2
Burning Brakes
Bought my RDX with 4 miles on the odometer. Vehicle has only been in central FL for 1600 miles. Changed out my wheels and this is what I see on both sides in the front; the bolts and such are highly corroded also. LKAS, ACC, brake mitigation, etc lights are all on for last 4-500 miles. Anyone has similar issues?
#6
Burning Brakes
#7
Intermediate
Thread Starter
This is the only vehicle (out of 10+) I’ve had in the last 20yrs that has this issue. Ironically, this is the only new vehicle I’ve ever bought. Rust isn’t a concern in FL compared to northern states that uses road salt.
Last edited by specie; 02-03-2019 at 12:35 PM.
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#8
Drifting
Normal. The steering knuckle is cast iron. Cast iron rusts. Eventually, it will "mellow" into a darker, less noticeable color rather than the bright orange flash rust.
Usually cast iron has a thin black coating, but it doesn't necessarily last very long.
This has NO impact on safety or performance; purely cosmetic. Even with the surface rust, the steering knuckle may be the last thing left of the car after "retirement", unless the car gets melted down for recycling.
BTW, "specie", are you sure you have compatible TPMS sensors installed in the wheels you swapped onto the car?
Usually cast iron has a thin black coating, but it doesn't necessarily last very long.
This has NO impact on safety or performance; purely cosmetic. Even with the surface rust, the steering knuckle may be the last thing left of the car after "retirement", unless the car gets melted down for recycling.
BTW, "specie", are you sure you have compatible TPMS sensors installed in the wheels you swapped onto the car?
Last edited by Wander; 02-04-2019 at 05:21 PM.
#9
Racer
Agree with the cast iron but what about the bolt heads in the first picture? The only time I've seen anything like that here in CA is on boat trailers and boat motors used in the ocean. It almost looks like there is some electrolysis between dissimilar metals or something going on.
#10
Drifting
Agree with the cast iron but what about the bolt heads in the first picture? The only time I've seen anything like that here in CA is on boat trailers and boat motors used in the ocean. It almost looks like there is some electrolysis between dissimilar metals or something going on.
Did they lay down road salt during the recent freeze? Here in the frozen north we have car washes with undercarriage sprayers to deal with such things, or at least make us feel better.
#12
Intermediate
Thread Starter
The service advisor said they’re approved for the replacement of the steering knuckles. My camera (for ACC, lkas, etc) is still on backordered....
#13
Burning Brakes
so they agreed that the rust was more then normal?
#14
Drifting
FWIW, here's a view of one of my steering knuckles while I was swapping off winter tires/wheels. Note the mellow tan patina, like well worn leather.
But also note the relative lack of corrosion on other components. If I didn't know better, I would think OP's vehicle spent some time partially immersed in salt water.
But also note the relative lack of corrosion on other components. If I didn't know better, I would think OP's vehicle spent some time partially immersed in salt water.
Last edited by Wander; 04-16-2019 at 12:14 AM.
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subin (05-21-2019)
#15
Racer
Same here in Arizona
My son and I were installing a set of caliper covers and we noticed said part after removing the wheel. Mine has it too, and we’re in Mesa, the bigger city near Phoenix. Weird but true....
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