Not at fault, car still shaking weeks later, and now insurance wants ME to chip in for repairs??

Oh man, I went through almost this exact situation two years ago. Different circumstances but same runaround — they tried to tell me my struts were 'already deteriorating' after someone blew a stop sign and hit me. I pushed back hard, sent them the service records from three months before, and eventually they backed off most of the betterment claim. The documentation is your best friend here. Don't let them just assert wear-and-tear without actually proving it.

Betterment is one of the most overused tools in an adjuster's toolbox. They throw it at everything hoping you won't question it. The burden should really be on THEM to demonstrate those parts were actually degraded before the crash — not just old. Age alone doesn't equal worn out. If you have any pre-accident service records, hold onto them tightly and reference them every single time you respond to these people.

I'll be straight with you — I used to work claims, and betterment is legitimate in some cases but it genuinely gets abused. The way it's supposed to work: if a part was measurably worn and the replacement leaves you with something better than what you had before the crash, they can reduce the payout proportionally. But 'the car has miles on it' is NOT enough justification on its own. They should have an actual assessment showing degradation, not just an assumption. If their documentation is thin, say so explicitly and in writing.

A couple of things that might help: First, put everything in writing going forward — no more phone calls without following up with an email summarizing what was said. Paper trails matter. Second, you can request their written basis for the betterment reduction. They should be able to provide documentation supporting that determination. If they can't, that's a problem for them, not you. Also worth knowing: in most states, the at-fault party's insurance is supposed to return your vehicle to its pre-loss condition — not pre-loss condition minus depreciation on healthy parts. Not legal advice, just stuff I've seen come up a lot.

Get an independent inspection done by a shop that has zero connection to the insurance company or their preferred repair place. Have them document the current condition and give their opinion on whether these issues are consistent with accident damage. That report becomes your counter-evidence. Stop letting the insurance company's preferred shop be the only voice in this conversation.

This is a pretty common dispute and there are definitely ways to challenge it formally. A few things worth knowing: (1) you generally have the right to dispute a betterment determination if you can show the parts were functional pre-accident, (2) your pre-accident service records are potentially strong evidence, and (3) if the at-fault carrier keeps stonewalling, your own insurer may be able to intervene on your behalf depending on your policy. Not legal advice — every situation is different — but a free consult with a PI attorney who handles property damage claims might be worth your time just to understand your options.

The fact that you have pre-accident maintenance records is genuinely a big deal — a lot of people in your situation don't have that. You're not starting from zero here. That documentation puts you in a much stronger position than most people who face this same argument from insurers. Keep pushing.

This sounds so exhausting on top of everything else that comes with being in an accident. Six weeks of back and forth, rental drama, and now they want money from you? For something that isn't even your fault? I really hope you get this sorted. You deserve to have your car back the way it was and not owe a single cent for it.