[urq] Diff Lock Question

[John Koenig]

That seems at odds with Audi's strategy 'back in the day' since once they adopted a two-stage system (for '83?) it locked the rear first, then center and rear together. 

As for modern variations and opinions driven by actual practice and success or failure, I have no idea. 

~John 

----- Original Message -----

From: "Paul Ahvenainen" <pahven at gmail.com> 
To: "John" <johnkarasaki at msn.com> 
Cc: urq at audifans.com 
Sent: Wednesday, July 2, 2014 9:31:15 PM 
Subject: Re: [urq] Diff Lock Question 

So let's see if I have this right. The recommendation is that it's OK to lock the center diff, but not the center and rear or rear only. So, I should be able to valve off the rear diff lock so that if I pull the console knob, only the center diff locks. Then, if I do end up in the ditch, I can open the valve to the rear diff to get out of that jam. Does this make sense??? 

Sent from my iPad 

> On Jul 1, 2014, at 8:57 PM, John <johnkarasaki at msn.com> wrote: 
> 
> Center only 
> 
> On Jul 1, 2014 7:56 AM, Scott DeWitt <scotty at advancedautomotion.com> wrote: 
> Are we talking about locking the center diff or the center and rear diff? 
> 
> 
>> On Tue, July 1, 2014 8:30 am, Schaible, David wrote: 
>> Probably good advice thinking about $ and parts availability to repair, 
>> however I don't know that I've heard of anyone in 15 years who has had any 
>> issues with center or rear diffs. I broke the actuator arm on my 200q20v 
>> rear diff in the lock position and drove it locked almost 10k miles before 
>> I replaced the diff. You can feel it and it will scrub your tires down 
>> faster but as far as it being dangerous.....I don't agree. Many people 
>> say the old setup, mechanical diff in center and rear is more predictable 
>> than the torsion. 
>> 
>> David Schaible 
>> 
>> JRS PHARMA LP | 2981 Route 22, Suite 1 | Patterson, NY 12563 
>> (P) 845.878.8343 | www.highfunctionalityexcipients.com | www.jrspharma.com 
>> 
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>> -----Original Message----- 
>> From: urq [mailto:urq-bounces at audifans.com] On Behalf Of Paul Ahvenainen 
>> Sent: Monday, June 30, 2014 10:17 PM 
>> To: urq at audifans.com 
>> Subject: [urq] Diff Lock Question 
>> 
>> I had 2Bennett do some work on my 83 urq last week. It's very nice to work 
>> with a team that understands these cars and actually keeps parts on hand. 
>> 
>> Any way, when I picked up the car, they gave me some advice about the 
>> differential locking mechanism. Basically, they said don't use it for 
>> anything other than getting out of a ditch. They said it should only be 
>> used at low speed, in a straight line, otherwise the handling will be 
>> dangerous and the repairs will be expensive. According to the owners 
>> manual the system is recommended for use for low traction conditions, like 
>> rain. 
>> 
>> I'm curious about experiences that other early urq owners have had. My car 
>> has the single stage activation that locks both the center and rear diff 
>> at the same time. 
>> 
>> Thanks. Paul 
>> 
>> Sent from my iPad 
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> 
> 
> -- 
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> Scott DeWitt 
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