
Engine & gearbox
5 servicesThe core of the business — from a timing chain replacement to a complete rebuild.
- Engine rebuild from 8.500 €
- Gearbox rebuild from 2.500 €
- Timing chain replacement from 1.350 €
- Engine repair
- Cylinder head and valvetrain
Workshop appointments by arrangement

Independent master workshop · Neuburg am Rhein
Services

The core of the business — from a timing chain replacement to a complete rebuild.

Planned appointments to the manufacturer's schedule.

Clutch, suspension and everything else a car needs, for all common marques.
The strip-down report
Bearing damage, lost compression, oil consumption, swarf in the filter: the cause is only certain once the engine is stripped on the stand and the measurements are on the bench. That is why the strip-down report is a service in its own right, with a written result — and not a guess over the phone.
Price
On request
For stripping, measuring and the written documentation. Credited in full against the job.
You hear back within 24 hours, from a person

Why an independent workshop
We belong to no franchised network, and that is a deliberate decision. An independent workshop can open an engine, look for the cause and repair it, instead of selling a complete exchange unit.
An exchange unit is the quick way — not the right one, as long as nobody has looked at why the old engine died.
Whatever comes to light you see on the part, not for the first time on the invoice. Every measurement is written down and compared against the manufacturer's specification.
As a rule the manufacturer's warranty stands, provided the work follows manufacturer specification and the service is documented. That is exactly how we work.
Method
Fault memory, compression and leak-down tests, borescope inspection, oil and filter checked for debris.
Engine and gearbox come out of the car and onto the stand — stripped down to cleaned individual parts.
Crankshaft, rods, bearing clearances, bores, flatness, valve guides and seats. Every figure written down.
Honing, skimming, recutting valve seats. What goes in is what the measurements call for, not what is on the shelf.
Every fastener to torque and angle, valve timing set with the specified locking tools.
Oil pressure and leak checks, warm-up, road test. Documentation and a clear word on running-in.
Our work
GearboxGearbox opened — gear set and selector forks
New main bearing shells
911 Carrera 2 (964)Reviews
5.0 / 5
from 31 Google reviews
Gearbox repair
I have never been received so kindly at a workshop with a part I had taken apart myself. My 996 runs again thanks to the gearbox repair. Likeable, quick, real expertise and a really fair price. Many thanks, I'll be back!
Lukas L.
Porsche 911 (996)
Picked by us from 31 Google reviews and translated from the German. We do not check ourselves whether a review comes from a customer; Google says it screens reviews automatically for fake content and spam.
All reviews on GoogleWhere we work
A car with engine or gearbox damage should not be moved under its own power. We arrange the transport — procedure and cost settled with you beforehand.
Mon–Fri 08:00–17:00Sat 09:00–14:00Appointments by arrangement
Questions
The common ones here, the specific ones on the service page they belong to.
All questionsIt depends on the engine. On our price page you choose the make and engine and see what the rebuild costs, what it includes and what can come on top. If the measurements show further damage, to the crankcase for example, you get the additional scope in writing, labour and parts listed separately. No part is ordered and no repair started without your approval.
All pricesAs a rule the manufacturer's warranty stands, provided the work follows manufacturer specification, the parts used are of matching quality and the service is properly documented. That is exactly how we work. New-car, extended and used-car warranties, though, run on the terms of whoever issued them. Bring the paperwork with you and we will look at it before you decide.
No. A&G Sportwagen Service is an independent master-certified workshop and belongs to no franchised network. We specialise in Porsche engines and gearboxes and work to manufacturer specification, and we do so independently. Among other things, that means we can repair where elsewhere an exchange unit is sold.
A car with engine or gearbox damage should not be moved under its own power; that often makes the damage considerably worse. We arrange transport through a transport company, at extra cost charged by the kilometre. We settle the procedure and the cost with you beforehand.
The focus is Porsche, but this is not a single-marque workshop. We change timing chains on Audi, Mercedes-Benz and the BMW N47 and N57 diesels, and we carry out engine and gearbox work on other makes as well. Servicing, brakes, air conditioning and repairs we take on for all common marques.

Fault reported, cause to be found
Rattling on a cold start, swarf in the filter, a crunch going into gear — the more precise the description, the more useful the first assessment.
Journal
Answers to the questions that get asked on the phone anyway.
Timing chain
Why the chain drive sits on the gearbox side, and why that makes the job dearer than on any other engine.
Flat-six
What debris on the magnetic drain plug tells you, and why driving on is the most expensive decision.
Gearbox
Three noises, three causes — and how to tell them apart before the gearbox is opened.