Passat Variant 3BG Rear axle failure

Hi everyone,

I'm having a small problem with my rear axle. I am unfamiliar with this area.

When I changed to winter tires two days ago, I noticed that I had more wear on the rear tires (HA) than on the front tires (VA).

Also, on both sides, the tires are more worn on the outside than on the inside. On the passenger side, there is still more space than on the driver's side.

In terms of measurement, there is approximately 2.5 mm of difference in thickness from the inside to the outside of the tire.

Is this normal for the Passat?

OK, the driver's side unfortunately once got a hit from the fender in winter (90° angle, it was icy), but why does the driver's side then also wear out on the outside?

Can the 3BG HA be adjusted to prevent falls? It's not 4Motion, so it doesn't have a single-wheel suspension.

In normaler Fahrweise, I don't notice anything.

Thank you, and best regards,
Benjamin

Hi, it seems that your impact also likely distorted the lane markings at the rear, and this will normalize when driving at an average speed. The car is essentially running slightly skewed at the rear.
Additionally, the fall may be misaligned, something is crooked.
You need to make sure everything is properly aligned, and if something turns out to be out of alignment, I would replace it and then go back to adjust/check it.

Therefore, more wear at the rear than at the front is not conceivable, but that the inside is more worn, meaning the outside, could be.

Sport suspension?

One can only convey the feeling of falling today. How many kilometers did the tires last?
"The cost of a is only 35,- Euros, so it's still possible."

Just a reminder that it only costs 35,- Euros, so you can still

And where is it, if you don't mind me asking? I always pay 65,-€

Space Berlin. It is allegedly also very cheap at Stop & Go.
Well, even at 65,- it's better than constantly having to buy new tires, right? So oft macht man das ja nicht.

Tribu wrote:

Therefore, more wear at the rear than at the front is not conceivable, but that the inside is more worn, so that the outside can be, is possible. Sport suspension? One can only convey the feeling of falling today. How many kilometers did the tires last?

The pattern is more pronounced on the outside than on the inside, and it's visible on both sides. Series depth 15mm

Overall tire performance is good and expected to be around 60,000 km (replace both front and rear tires seasonally).

So, it's not that crazy, and the impact also happened 2 years ago.

I was still surprised that it's mutual.

Can you actually adjust anything there?
If I read it that way, is it cheaper to fix the damage yourself than to get it assessed and repaired professionally...?

Hello,

I also experience increased outer edge tire wear at the rear of my Bora Variant, approximately 2mm over 20,000 km compared to the inner side!

I have noticed that this occurred after the lowering with the 30mm Bilstein B6 sport suspension!

However, this summer I also had 20Tkm on the rear tires and 2.8 bar of air pressure in the tires!
There is a tow hitch from accessories on the car; now there is no original rear one. Feathers with a different identifier.

Does this combination now favor an atypical wear pattern, solely due to the tracking towards the central axis?
Because the fall remains the same during the simplification!

Best regards, Ferdi

Quote:

You need to have it properly calibrated, and if it turns out that something is wrong, I would replace it afterward and then go back to have it adjusted/checked.

Exactly, values are essential; everything else is just idle chatter.

It becomes dangerous when the overall rear track is noticeably bent into the negative range, which is the case in 99% of cases.
However, in addition to the fact that the car then runs like a dog, there is also a further instability of the vehicle when changing lanes quickly and at high speeds.

My Passat also had edge wear on the rear, both sides, and outside, as well as saw-tooth formation.
Since I've owned the vehicle, all the wheels have been running perfectly evenly, without any changes to the vehicle itself.

Sometimes (if only the outer edges are affected), it's simply a matter of the driving profile, even though some people may not agree with this.

Well, at 60,000 km, I wouldn't do anything. If he's not out running errands

Hi,

My Passat also had edge wear on the rear, both sides, and on the outer edges, as well as saw-tooth formation.
Since I've owned the vehicle, all the wheels have been running perfectly evenly, without any changes to the vehicle itself.

Sometimes (if only the outer edges are affected), it's simply a matter of the driving profile, even though some people may not agree with this

I am, after all, critical, could you give me a tip on how I can change my driving style in this regard so that the outer flanks are not abraded and do not tend to form saw-tooth patterns!

Values are important to me, I cherish them! But they look good, and most importantly, I can't identify any negative aspects in the driving behavior!

My driving profile consists of 80% highway, 15% rural roads, and 5% city driving over a 100 km distance, both ways, while I consciously drive in a fuel-efficient manner! I don't encounter hairpin turns on my commute! Maybe just the AB exit, which I quickly pass through so that I can still have momentum when I enter the roundabout!
This is also the only situation where I could imagine increased wear on the outer side of the tire, but I really don't believe it!

Could it possibly be the tires?
I fitted the Hankook Ventus Prime K105 in size 205/55-16V OE on my VW Golf.

Best regards,

Ferdi

Driving at high speeds through sharp turns, making sharp turns with momentum, and accelerating/decelerating simultaneously (or performing "aggressive" overtaking maneuvers) are all factors that increase the risk of accidents. To make the rear of a Passat "drift" so that it runs off the edge of the road, a very skilled driving style with ESP disabled is required.

However, based on your description, I do not assume such driving patterns, and would leave further measures to the specialist after axle measurement as part of the diagnosis and, if necessary, adjustment. I am not familiar with the rear axle construction, and therefore I have no idea which parts were bent or distorted due to the impact against the curb edge, or what extent of corrective measures can be taken.

Some of our service vehicles also wear down the tires on the outer edge. However, this is only due to the tires on the front axle. This is likely due to almost exclusively city driving and the high axle weight on the front axle. When making sharp turns, the Passat noticeably pushes the front wheels. The tires are 205/16" Bridgestone steel wheels. Continental winter tires in the same size have more grip, but also wear down faster on the outer edges over time.

In addition to the axle-based tire change, our own workshop regularly removes the tires and continues to use them on the other side of the vehicle, while maintaining the same direction of rotation. Therefore, they are at least evenly used up when the profile depth has reached the minimum threshold.

Golf 4 and 5, as well as (to a lesser extent) the T5, also share the same engine characteristics. Specifically, I would have expected more wear and tear due to the higher vehicle weights in combination with the high center of gravity, compared to the Golf and Passat.

For me, the specified values are a good starting point for adjusting the camber/toe in relation to the wheel's wear pattern (tuning)!
So, if nothing is crooked, simply reduce the negative camber / increase the negative toe if possible.
Was wurde auf Spiel der Radlager überprüft?

Quote:

Can the 3BG HA be adjusted for tipping?

Not possible with front-mounted implements.
Total width cannot be adjusted, only centered.

Bye
pax

pax wrote:

Can the 3BG HA be adjusted for tipping? Quote: Not possible with front-mounted implements. Total width cannot be adjusted, only centered. Bye pax

I once received an offer: Cone-shaped, large adjustable discs for screwing underneath the wheel bearing housing, I think.

{Well, at 60,000 km, I wouldn't do anything.}

Tribu wrote:

If he's not out for a walk alone

I now tend to agree, especially since it seems like you can't really do much to adjust it anyway.

I will also discuss this again with VW during the service, for safety reasons.

The thick one doesn't exhibit abnormal driving behavior.

My driving profile also closely resembles that of Ferdi.

Quote:

I will also discuss this again with VW during the service, for my own safety

If you've really been driving aggressively on the shoulder of the road with your HA, you should have the wheel alignment checked. Why -- see above.