Frequently Asked Questions

Listed below are some of the Frequently Asked Questions we receive. If your specific questions are not answered here just call us at (408) 370-7480 or email us at and we will get back to you as soon as possible with an answer.

Q - What are your business hours?

A – We are open Monday through Friday from 8:00 A.M. to 5:30 P.M. except Friday when we close at 5:00 P.M.

Q - What should I do if my "Check Engine Light" comes on?
A – When the Check Engine Comes on it’s telling you one of the sensors in your vehicle has detected something is out of its normal operating range or condition. This can range from the gas cap not being secured properly to your oxygen sensor being faulty. Unfortunately we cannot tell you what the system is telingl you until we hook our diagnostic equipment up to your vehicles onboard computer.

Once we are communicating with your vehicles on board computer we can check what are called Fault Codes to see what sensor(s) is triggering the Check Engine Light to illuminate. When the Fault Code is identified we can in about 30% of the cases tell you exactly what it is and what it will cost to repair the problem.

For the other70% the fault code only points us to a general area or system that will require us to spend some diagnostic time to identify the exact component or system that’s failed.

Q - How easy is it to drop off my car for service?

A – We offer a variety of methods to drop off your vehicle with the focus on convenience.

  • The tried and true method of dropping off your vehicle in person and handing over the keys is our favorite since we get to see you, find out what’s happing from you directly, and of course catching up on what’s happening in your life.
  • You can always use our Early Bird program. Just show up during non business hours and fill out the envelope, place you keys inside, seal it and place the envelope in the mail slot in the front lobby door.

Q - Do I need an appointment or can I just drop in?
A – We operate on an Appointment basis but always call, we are a "Yes We Can" company and will do everything we can to take care of you. We do however allow some time during each day for emergencies and drop-ins. This allows our business to flow much easier and ensures say day service.

Q - Do you have a shuttle service?
A – Yes we do. We can take you to work, your home or the light rail in our world famous Audi Van. This service is offered for a radius of 3 miles from the shop, staff permitting.

Q - Can I wait while you service my car?
A – Yes, we have a comfortable waiting room where you can relax and read up on the latest automotive and networking technology. We also provide a good selection of gossip and home improvement magazines. Within two blocks there are several resturants ans shops for you to visit.

To be honest we would prefer to take you home or work. Our technicians get the feeling someone is looking over their should as they work when we have customers waiting and we all know how that feels. It’s just easier for us but we do it all the time.

Q - Can you perform authorized factory warranty or recall work?
A – Authorized Factory Warranty and recall work can only be performed by an authorized dealer. When a situation arises and we are aware of a recall we will inform you so you can get the work done for free at the dealer of your choice, after all you’ve paid for it.

Q – Can you perform extended warranty work?
A – Yes we can. We will generate an estimate for the necessary repairs and contact your insurance provider for authorization. Once they have provide the dollar amount they will cover we will call you letting you know what your responsibility will be, deductible and costs the insurance provider will not cover, and get your approval to proceed. In many cases the insurance provider will cover diagnostics as well.

When the repairs are completed we provide the insurance provider with the necessary documentation so they can send out the reimbursement check to you.

Q - What if I cannot pick up my car before you close?
A – If the situation arises where you cannot get to our shop before closing hours we can accept payment over the phone via credit card. We can either lock the keys inside your vehicle or place them in a predetermined location so you can get into your vehicle.

Q - Can I get my old parts back?
A – In California, like many states, it is the law. We must ask you if you want the parts back or not when you drop off your vehicle. If you are using our early bird system please make sure to tell us. This may only entail you just looking at the part or taking it with you.

The only exception to this situation is if there is a core charge. A core charge is a fee the distributor of the new part requires if you want to keep the old part. In most cases we just return them and the fee is waved. If you want to have the part however we will have to charge you for the Core Fee.

Q - Do you accept credit cards?
A – Yes we do, Discover, Master C




RennWerks Performance
1070 Dell Avenue
Campbell, CA 95008

Phone: 408-370-7480

M- Th:
7:45am - 6pm
7:45am - 4pm

M&M German Car Care / RennWerks Performance. Copyright © 2017. All Rights Reserved.