Traffic Accidents2026-10-06

My garage overcharged — will my comprehensive insurer still pay the full bill?

When your comprehensive insurer reduces a repair bill, you are often left to cover the shortfall yourself. I explain when that is lawful and when it is not.

Your comprehensive policy covered the repair, the garage sent its invoice, and now your insurer is reducing the payment because, it says, certain items were not actually necessary. You are expected to foot the difference yourself — even though all you ever did was hand over the keys. I will explain why comprehensive insurance works differently here from a claim against the other driver after an accident. And I will show you where the line is drawn.

In short

Under a comprehensive motor policy you, as the policyholder, generally bear what is known as the “garage risk” yourself — unlike the position with a third party’s liability insurer after an accident. Your comprehensive insurer only has to reimburse the repair costs that were genuinely necessary, not every item the garage happens to invoice. The reason is straightforward: comprehensive cover gives you a contractual claim against your own insurer, not a claim in damages against a wrongdoer. The garage-risk principle developed for liability claims does not simply transfer across. There is one exception: if the insurer itself directed you to a particular garage or gave specific instructions about the repair, it shares the risk of any unnecessary extra costs.

How I can help

I review the garage’s invoice and your insurer’s reduction item by item.
I establish whether an exception to the garage risk applies — for instance, where the insurer influenced the choice of garage or the repair method.
I assess what an assignment to the garage actually means for you in law, and whether you can nonetheless be pursued for the balance.
I represent you against both the insurer and the garage where a reduction is unjustified, or where the garage is wrongly chasing you for more.

Why comprehensive cover is liable differently from the other side’s insurer

Where another driver is at fault, their liability insurer owes you the sum needed to put the damage right, under § 249 Abs. 2 Satz 1 BGB. As a rule it must also meet uneconomical or inflated invoices from the garage you chose, because you, as the injured party, have no influence over that garage’s pricing. I set out the detail in my background piece on notional settlement after an accident.

Comprehensive cover is not a claim in damages against a wrongdoer. It is a contract you entered into with your own insurer. Under that contract the insurer promises to reimburse the costs necessary for the repair — not to meet every invoice a garage chooses to raise. This is precisely the distinction the courts have drawn in the comprehensive-insurance context. The garage-risk principle developed for liability claims cannot simply be carried over, because here there is no wrongdoer who must answer for the consequences of a choice of garage they had no part in. In this relationship the garage is your own contractual partner, not the insurer’s. The commercial risk of an inflated or unnecessary repair therefore rests, in principle, with you.

What “necessary” means — and who has to prove it

The usual flashpoints are UPE surcharges on parts (the markups on the manufacturer’s recommended prices), the cost of transporting the car to a paint shop, flat-rate downtime charges, or individual steps that could have been done more cheaply or not at all. The insurer must pay what was genuinely needed to repair the damage properly. It does not have to pay whatever the garage has costed. You are claiming performance under the insurance contract, so if there is a dispute it will usually fall to you to set out, and if necessary prove, that the work invoiced was necessary — for example through a clear report or a confirmation of repair. A blanket reduction, on the other hand, is not something the insurer can simply impose. It has to explain, item by item, which charge it says was unnecessary and why.

If you clearly chose an overpriced option, or had unnecessary work carried out, the insurer can also rely on your duty to mitigate loss under § 82 VVG. Where that duty is breached through gross negligence, the insurer may reduce its payment in proportion to the seriousness of the fault. That would bite on top of any item that was not “necessary” in the first place.

The exception: when the insurer directed you to the garage

If your insurer steered you to a particular partner garage — for instance under a garage-restriction clause that gave you a premium discount — or gave specific instructions about the repair method, then it has itself influenced how the costs arose. In that situation it is no longer solely your concern whether the garage works economically. To that extent the insurer shares the risk of its own instruction. What matters is how specific that instruction was: a mere mention of a “recommended” garage will not usually be enough, whereas a binding referral with authorisation to carry out the repair is a different matter. So whenever an instruction of this kind is given — on the phone or by email — make sure you get it in writing.

When the garage invoices directly: what the assignment changes

It is common for the customer to assign their reimbursement claim against the comprehensive insurer to the garage (§ 398 BGB), so that the garage settles directly with the insurer and the customer does not have to pay up front. That, however, changes nothing about the underlying legal position. Under § 404 BGB the insurer can raise against the garage, as the new creditor, exactly the same objections it could have raised against you — including the objection that particular items were unnecessary. The insurer then does not pay the full invoice amount to the garage. What often remains open is who bears the shortfall: if the assignment was made only “by way of performance”, the garage can then come back to you for the missing sum under the repair contract. So before you sign, check whether the repair contract expressly rules out any such further claim.

A typical case

After a car-park knock with no other driver involved, the comprehensive insurer covered the repair less the agreed excess. For the paintwork the garage additionally billed substantial transport costs and UPE surcharges. The insurer paid only part of this, pointing to the garage risk as resting with the policyholder. The garage then pursued the customer directly for the outstanding balance — relying on a clause in the repair contract under which the assignment had been made only by way of payment. It was only the item-by-item review of the invoice that revealed which reductions were justified and which had not been properly explained.

Common mistakes

Signing the repair contract without first obtaining an estimate. Or signing it without reading what happens if the insurer makes a reduction.
Assuming that an assignment to the garage automatically ends your own liability to pay.
Accepting a reduction by the comprehensive insurer without challenge, instead of testing it against the individual items on the garage’s invoice.
Failing to get a verbal garage recommendation from the insurer confirmed in writing — in a dispute it can then barely be proved.
Not comparing the final invoice with the original estimate.

Frequently asked questions

Do I have to pay the garage’s invoice myself before the comprehensive insurer reimburses me?

That depends on how it is handled. If the garage settles directly with the insurer because you have assigned your claim, you do not need to pay up front. But if the insurer does not pay in full, the garage may, depending on how the contract is drawn, still be able to pursue you for the outstanding amount.

What is the position if the insurer suggested the garage to me?

The more specific and binding the instruction was, the more likely the insurer is to share the risk of an inflated invoice itself. Document instructions of this kind in writing. In a dispute it is for you to prove the circumstance that triggers the exception to the garage risk.

Can I take action against the garage over the inflated invoice?

Yes. Quite apart from your relationship with the comprehensive insurer, you can object to the garage that particular items invoiced were not carried out or were not necessary. That is a separate dispute under the contract for work. It needs to be kept distinct from the question of what the insurer has to pay.

Does this also apply to partial comprehensive cover?

Partial comprehensive cover follows the same contractual principles as fully comprehensive cover: what is reimbursed is what was necessary for the repair, not automatically every item on the invoice. The difference between the two lies in the range of insured events, not in the question of the garage risk.

Does an estimate before the repair help?

Yes. An estimate that you agree with the insurer before the repair begins makes it clear which items are accepted as necessary. If the final invoice then departs from it, the discrepancy is far easier to place and, if need be, to take up with the garage.

Your next step

A reduction by your comprehensive insurer is not automatically justified simply because it is made with a reference to the garage risk. What matters is whether the insurer can actually prove that the individual items were unnecessary. What also matters is whether, by way of exception, the insurer itself influenced the choice of garage. Send me the garage’s invoice and your insurer’s letter setting out the reduction. In an initial consultation I will assess which items were struck out rightly and which wrongly. You will also find more on what to do after an accident in the road traffic accident law section.

This article provides general information and is no substitute for legal advice on your particular case.

This article provides general information and is no substitute for legal advice in an individual case. Last updated: 2026-10-06.

Christian Czirnich, Rechtsanwalt (attorney at law), Kirchseeon near Munich

Describe which items your comprehensive insurer cut – I will look into it.

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