What is a Porsche Active Suspension Management System?

Since 2005, Porsche has been installing Posce Active Suspension Management (PASM) system in their cars. What this system does is provide improved grip and greater comfort while you drive your Porsche vehicle. What makes this system so unique from a standard damper is that it does not have a control wire that is connected to the head of the unit. What the PASM has is a central control unit that is connected to all four dampers that send out an army of sensors that spring into action at the push of a button.

What these sensors do is they measure parameters such as steering input, body roll, and suspension bump while you drive your Porsche vehicle. This data is sent back to the control unit, where the PASM system determines whether to stay in normal or sport mode.

Normal Mode

In normal mode, the valves controlling the channel are open, which allows for a greater flow of oil, resulting in a softer damper.

Sport Mode

In sport mode, the dampers stiffen as the bypass channel is closed. This allows for greater cornering performance by maintaining the tires’ contact with the road. By closing the bypass channel, there is an increase in the compression needed to force the oil through the damper body. Creating a stiffer damper and a more responsive Porsche vehicle.

For more information on PASM systems and other Porsche maintenance services we offer, give us a call!


What is a PDK Transmission?

When it comes to transmissions, high end brand cars are always looking for the best technology and engine parts to put in their models. Porsche has done just that with their Porsche Doppel Kupplings (PDK) double-clutch transmission. What makes the PDK different from standard dual-clutch transmissions is that it uses hydraulically actuated wet clutch packs one enveloped around the other.

The PDK is broken down as such. One clutch connects reverse, the first, third, fifth and seventh gears, while the other handles the second, fourth and sixth gears. Instead of a clutch pedal on the floor, the PDK has an electronically controlled valve body that actuates the correct clutch when needed. The PDK system engages one clutch at a time. However, because gear sets alternate between clutches, as one disengages the other can engage in one fluid motion.

The PDK transmission system avoids damaging parts with launch control by effortlessly switching from one clutch to the other, as the system engages one clutch at a time. By doing this, the oil-soaked wet-clutches don’t overheat and wear out under pressure.

For more information on the PDK transmission and other Porsche services we provide, contact us today!

What is Porsche Dynamic Chassis Control?

With any car, if you are driving and cornering you will feel the weight of the car roll towards the outside tires. When this happens, it means the loads experienced by each tire are no longer even. To fix this issue, Porsche has designed an electrohydraulic antiroll bar system called Porsche Dynamic Chassis Control (PDCC). This system results in more responsive handling when cornering with Porsche vehicles. What makes this system different is that the PDCC uses hydraulically actuated cylinders to mechanically alter the load on both the front and rear antiroll bars.

The PDCC also uses sensors to measure the movement under both bump and rebound for each damper. With this information the system will know how to load both antiroll bars as you drive. Each corner of the car has cylinders that move in the opposite direction to the dampers of the PDCC system. With this movement, the camber of each wheel works at optimal levels, while ensuring the right amount of load is transferred from wheel to wheel while cornering.

This system designed by Porsche is great as it ensures a more direct turn in, while make the car’s stability is at its optimal levels while cornering.

Here are Boston Motor Werks, we perform diagnosis on this and other Porsche made systems during our Porsche maintenance service!

4 Warning Signs You Need To Get Your Brakes Replaced

Brakes are one of the most important aspects of your vehicle whether you have a BMW Porsche, or Mercedes or any other type of car. This is because these devices keep you safe as well as preventing the car from driving through unwanted places or things. When it comes to brakes, the only sure fire way to know if you need new brakes is if you take your care for a scheduled inspection and get results back saying you need a replacement. There are other factors to look out for while driving that are actually warning signs that you need new brakes.

Here are some signs of brake problems to look out for. If you experience any of these you should visit your repair shop or see a specialist as soon as possible.

Reduced Responsiveness or Fading

If your brakes are not responding as they normally would and should then this could be taken as an indication of a leak in the braking system. Another sign of a leak is if the pedal sinks towards the floor of your car. The type of leak could be either air or brake fluid but both require an inspection. The oldest way to figure out if your brake fluid is leaking is if you notice a small puddle of fluid when your car is parked.


If you are braking and your car starts to pull to one side it may be a sign that the brake linings are wearing unevenly. Another cause of this pulling motion is if there is some sort of foreign matter in the brake fluid. If either of these reasons are causing any pulling while you brake then you may need a brake adjustment or to have your fluids drained and replaced.

Grinding or Growling

If you start hearing a grinding or growling sound while you apply brakes to your car then your brake pads have been worn down completely beyond replacement. This noise is caused when the two metal pieces of the brake rubbing together. The longer you drive with worn down brake pads, the more likely you are to “score” or scratch your rotors and creating an uneven surface. Once the rotors are uneven, you will need to have them “turned” by a professional or replaced depending on the damage.


If you are driving, applying the brakes and notice a vibration or pulsating brake pedal then it is a sign your have warped rotors. Not to be confused from vibration when your vehicle is our of alignment, if the vibration occurs during braking situations when the anti-lock brakes are not engaged then it is a sign of warped rotors. This vibration is felt because the brake pads are not able to grab the surface easily.

For brake services and other specialists services, contact us today!

Maintaining Your BMW During The Winter

Those that live in New England know that the winters here can be harsh and brutal. While we protect our home and selves from the cold and snow we need to also thing about our cars as well. Without proper maintenance before the winter season, your car can encounter problems as the winter months progress. This is especially so for BMW owners as BMW are more than just a car, they are a way of life. A lot of the tips mentioned below will seem like common sense but in reality, many people tend to overlook. Here is what you should check up on before the winter season is in full effect.

Internal Maintenance

When the temperature drops, the fluids in your car can be severely effected which could prevent your BMW from running properly. Ensure that your antifreeze and the viscosity of your BMW oil are at proper levels for optimal performance. Hoses and belts can also be effected by the sub zero temperatures so be sure to make sure nothing is wrong with these components. With all of the snow, water could seep its way under your hood and damage your engine and other components such as your car’s battery. Check for any corrosion on the battery during the fall so you will not have battery problems in the winter. As with every scheduled maintenance, the winter season is a great chance to get an oil change as well!

Exterior Maintenance

When you think of winter time and cars, you think of all the salt that will be on your car eating away at the paint. Be sure to wash your car to remove any salt that could corrode your paint as well as keeping your tail lamps, headlamps, and windows clean as well. Other things to keep in mind is the traction of your car as well as the windshield wipers as these are two very importance things to have working properly in the winter. If you feel your tires are not well equipped for the slippery snow then trade them in for snow tires during the winter. Make sure your windshield wipers are not tearing apart so they can handle the heavy snow to come.

Preparation is Key

When it comes to maintenance in general and not just for the winter you will need to be prepared with the right equipment handy. Keep pressure gauges at the ready to check tire pressure as the winter gets worse and worse. You will also want to have spare fluids, jumper cables, a flashlight and batteries ready as well for any emergency case. With the winter, you will need to stock up on winter-specific supplies such as ice scrapers, blankets, and snow brushes.

Difference Between A & B Servicing For Mercedes Vechicles

When it comes to owning a car, having regular maintenance and repairs is necessary and vital to extending the life of your car. For the most part, repairs and scheduled maintenance comes pretty standard across most brands of cars. However, German automakers such as BMW, Porsche and Mercedes often have specialty repairs that need to be treated by trained technicians or specialists. With Mercedes, the company has made it so the maintenance needs are usually separated into two selections; A service and B service. Here at Boston Motor Werks, we have technicians for each BMW, Porsche & now Mercedes vehicles to ensure the proper maintenance is applied. Each technician are highly trained in their field to offer optimal services to our clients. Our Mercedes specialists are knowledgeable for both types of services whether it be A or B.

Whenever your Mercedes machine is ready for either of these services, you will receive an alert from the car’s computer system letting you know its time for an inspection. Once you bring your vehicle to our shop, our technicians will know exactly the type of service to perform based on our diagnostics software in combination with your car’s computer. The big thing that confuses people with Mercedes services is knowing what comes with each service. Below is the differences between each service and what to expect when taking your Mercedes vehicle in for a repair.

Service A

Like with moth services, the frequency of getting repairs is based upon how often you drive your car, how long, how you handle your cars as well as other factors. For Mercedes, if your car was made after 2009 you will need to service after its first year or at 10,000 miles on the road. Then again after every two years or 20,000 miles. Maintenance that often comes with Service A includes:

  • Replacing oil filters and synthetic motor oil.
  • Checking levels for all fluids and adjusting them to factory standards.
  • Checking and adjusting tire pressure.
  • Inspecting brakes for any issues.
  • Resetting your car’s internal counter for the next Service A visit.

With any car service, our specialists take into account of your cars year, make and model to gather the right sheet of information needed for the service. That way we ensure the most proper maintenance for your exact year and model of car. We are proud of our machines and want you to feel comfortable that your car will come out performing at its best.

Service B

Just like with service A, service B varies on your vehicles specifics as well as when it was made. After 2009, you should have your vehicle brought in after every 20,000 miles or every two years. The specifics of Service B maintenance for Mercedes is as follows:

  • Replacing oil filter, synthetic oil, cabin dust filter and combination.
  • Exchanging brake fluids and inspecting brakes for any issues.
  • Checking tire pressure.
  • Checking fluid levels and adjusting to factory settings
  • Resetting the counter for the next Service B inspection.

If you have any questions on our Mercedes services and would like to schedule your Mercedes for maintenance repairs call us today!

6 Signs Your Car Needs Suspension Repair

Suspension, or shocks, are a great thing on a car as it makes your drive comfortable and bump free as much as possible. After many miles and supporting the weight of your car, eventually you are going to need a suspension repair on your vehicle. With suspension being associated with smooth rides, they tend to not be treated as important as other car repairs. However, having a faulty suspension can greatly affect your ability to control your vehicle, especially during turns, so it is best to not skimp on getting your suspension looked at by a professional.

Below are six signs to look out for that are good indicators that your vehicle is due for a suspension service.

  1. Car Rides Roughly – This is one of the most common indicators that your suspension may need to be replaced or repaired. When drivers start to feel their ride to become bumpy or even if the body of the car bounces at every bump, then it is clear that they need to see a mechanic.
  2. Drifting – If you have a suspension that is not properly working you may tend to feel the car “drift” or “pull” when turning. This basically means that the shocks are no longer keeping the vehicle body centered against the centrifugal force of the turn. When this happens, you increase your risk of rolling the car over. The minute you feel the drift or pull when turning you should go to a repair shop.
  3. Dips When Stopping – With worn out shocks, you may experience the vehicle body lurch forward and downward, nose-first, when you apply your brakes firmly. When this happens, the ability of stopping the car quickly can be affected which may cause to collisions.
  4. Uneven Tire Treads – You may not think they are related but a bad suspension can affect your tires. Check your tires and their treads to see if there is any uneven wearing or balding spots. These are actually symptoms of a suspension that is not holding a car evenly.
  5. Damaged, “Oily” Shocks – Take a look under your vehicle and inspect your shocks. If you start to notice that they are becoming greasy or oily, there’s a good chance that they are leaking fluid. A leak is a good indication that they are not working properly and they need to be replaced.
  6. Bounce Testing – If you just have “that feeling” that your suspension is about to go, try testing it with the “bounce test.” With the car in park, press down the front end of the vehicle with all your weight and bounce it a few times then release. After that, do it to the rear of the car and if you notice that it bounces two to three times after releasing then you were right and the suspension is wearing out.

How Often Does An Ac System Need To Get Changed

When it comes to cars and repairs there is one vector of space that seems to be a mystery when it comes to repairing or inspecting. This space we speak of is the AC system of a car that provides cool air during the summer days and nights. Some AC systems may never need to be recharged or replaced while others may not be so lucky. This all depends on the type of car you have. Over the years you may notice that your system may start to perform less and less. Once you start noticing this then you will need to consult your repair shop or specialist.

The thing that makes gauging when an AC system needs a repair is that the answer to the questions is that it depends. There is not scheduled service that you are told about your car’s AC unit such as recharging your system annually or every two years. As mentioned before, the best indicator that your need to check on your system is when you notice the system cools less that it used to.

When you do notice a decrease in output from your car’s AC then it is time to have it inspected by a mechanic. They will look for and refrigerant leaks and if they find any leaks then those parts will need to be fixed to prevent further leakage. If there are no leaks found during inspection, mechanics will perform an “evac and recharge” service. This service consists of connected your car’s AC to a machine. This machine will take out the old refrigerant and oil from the system and then refill it to the proper level. Just like with any service, after completion the new repair will be tested to make sure everything works properly.

Next Porsche 911 To Come To With Digital Dashboard

Porsche engineers are testing out the next generation 911 Porsche vehicle. This model is not expected to be on sale until next year as a 2019 model, but there are already a couple of exciting improvements that are expected to come. One of the big additions of the next generation of 911 vehicles is the new digital dashboard that will be implemented. The tachometer that sits in the middle of the dashboard will still be analog but there will be digital screens to the left and right of the tachometer. The left screen will be showing the speedometer of the vehicle while the right screen will show specs of the car and lights such as check engine, fuel, etc.

The importance of the new digital dashboard is that drivers will now have instant access to the specs of their vehicles. Digital dashboards are also a great way to gain even more access to what is going on with your car over analog dashboards. You will have different options to choose from of what will appear as well as getting a more in depth description of what needs to be inspected, how many miles until you will empty your tank and much more. If you need any inspection on your Porsche be sure to call us today for a free estimate!

Just like with regular cars, BMW’s, Porsche’s and Mercedes’s need to have regular inspections for optimal performance. This goes especially well with fuel systems as internal combustion engines will not run without them. There are parts in a fuel system that are meant to stand up to years of use, but some parts tend to out last longer than other parts of the system. The system as a whole should be inspected regularly to see what parts of the system need to be check on.  As some parts of a fuel system need to be inspected more often than a others as well as different parts needing different levels of maintenance.

Fuel System Parts To Be Inspected

  • Fuel Filter – The fuel filter needs to be inspected or replaced the most often out of the other parts of the fuel system. Regular inspection is good to keep track of its usage so you know when to get it replace. Filters of a fuel system should be replaced every 10,000-15,000 miles.
  • Hoses – The hoses in which the fuel running to components of the engine bay should be checked regularly. Whenever you have your car serviced, ask your mechanic to check these tubes for breaks, blockage or anything else that would cause concern.
  • Fuel Injectors – Injectors should be inspected annually for performance issues. However, they should be replaced if there are issues with fuel delivery within your engine.
  • Fuel Lines – As with any line in your car, if you see that fuel is leaking under your car then you should have your hard fuel lines inspected. Any leakage should result in replacing those faulty lines for new ones that will not leak.
  • Fuel Pump – Pumps usually last around 100,000 miles but there could be signs that inspection is needed. This happens when the pumps begin surging fuel towards the engine or not delivering enough fuel. You will want to get an inspection regardless of the mileage if any surging begins.
  • Fuel Tanks – Fuel tanks necessarily don’t need to be inspected as they tend to last around 10 years. However, to extend the life of your fuel tank, avoid water and excess moisture at all cost to extend the life of your tank past 10 years.

Performing regular inspections and maintenance will increase the life span of your fuel system as well as providing your vehicle with consistent performance. To schedule a fuel system inspection for your BMW, Porsche or Mercedes call our office today!