Case Studies – Our Service Solutions

A Collection of the Odd, Unusual and Interesting Found While Servicing our Client Vehicles.

Originally intended as a showcase for customers of our workshop and staff’s abilities, this page has evolved in an interesting and informative teaching tool, and one of the most popular pages on our site!

By nature, these are rather extreme examples of failures, and not what we typically find during service. Our goal at Atlantic Motorcar is to prevent these from happening to you and your car. But rest assured, if we can fix these challenges, regular maintenance is breeze!

We like to call this our “YES WE CAN!” page. You can also view many of these concerns on our Facebook page. Each photo can be enlarged by clicking on it.”

24Apr, 2018

Mercedes Oil Cooler Seals, 642 Diesel Engine Cause And Correction

By | April 24th, 2018|Categories: Case Studies|Tags: , , , , , , , , , , |Comments Off on Mercedes Oil Cooler Seals, 642 Diesel Engine Cause And Correction

If you own a Mercedes with a BlueTEC diesel engine, you may have heard quite a bit about the oil cooler leaks that have plagued some models. It is in fact quite a common issue with many of the BlueTEC diesel Mercedes. If  like many of the owners out there, you are probably left with a lot of questions and wondering things like, “Which BlueTEC engines have oil cooler leaks?”, and “What are the signs of a leaking oil cooler?” That’s where the Atlantic Motorcar Center comes in. You see, we’re professionals in […]

24Mar, 2018

Mercedes CLK and SLK – Power Top Problem and Repair Service

By | March 24th, 2018|Categories: Case Studies|Tags: , , |Comments Off on Mercedes CLK and SLK – Power Top Problem and Repair Service

Screen Shot 2016-02-04 at 2.29.48 PM Mercedes with the Vario Top

History
The classic Mercedes SL chassis (aside from being Bruce’s favorite car ever) also know as the SL300, SL500, SLK, and CLK has to be one of the most amazing cars from a electromechanical technology standpoint. First released in 1989 (129 chassis) and are still in current production. The R129 replaced the R107 SL-Class in 1989 and was in its turn replaced by the R230 in 2003 (US). The R129 was produced as a two-door roadster with an automated (electro-hydraulic) textile tonneau cover. All R129

6Feb, 2018

Nitrogen And Automotive Tires – Peanut Butter & Jelly Or Snake Oil?

By | February 6th, 2018|Categories: Case Studies|Tags: , , , , , |Comments Off on Nitrogen And Automotive Tires – Peanut Butter & Jelly Or Snake Oil?

Nitrogen in TiresThe Claim
You’ve likely see 0r heard the claim, “Nitrogen gives me better fuel economy, makes my tires last longer, and I don’t lose air from my tires. It’s more responsible for the environment.”

Nitrogen in TiresAll noble and good things, except…actually, we’re all riding on nitrogen filled tires. Let’s let that sink in for a moment and I’ll explain. So called “normal” air, that stuff is all around you and me, but we can’t see, is composed of 78% nitrogen. It’s free, and when we […]

15Jan, 2018

Tech Tip – The Truth About Lifetime Transmission Fluids – “Oil is Cheaper Than Metal”

By | January 15th, 2018|Categories: Case Studies|Tags: , , , , , , , , , , , |Comments Off on Tech Tip – The Truth About Lifetime Transmission Fluids – “Oil is Cheaper Than Metal”

BMW, Mini Cooper Transmission Fluid

There is a trend with many manufacturers to use so called “Lifetime” transmission fluids in their new cars. Audi, BMW and Mercedes have been doing this for years.

The real question is what is a “lifetime”? If the lifetime of the car is the reference point, most owners will be sorely disappointed, for it seems to us that almost all of the fluids need service around 60K miles, far shorter than the lifetime of most European cars. While fluids and lubricants have doubtlessly improved over time, we suspect […]

15Jan, 2018

BMW and Mini Cooper Battery Replacement – Registering New Battery

By | January 15th, 2018|Categories: Case Studies|Tags: , , , , , , |Comments Off on BMW and Mini Cooper Battery Replacement – Registering New Battery

Did you know that the BMW engine computer, known as a DME (Digital Motor Electronics) must be programed to know a new battery has been installed?

Our Senior Service Technician Nick explains why. We’re obviously playing up the humor here, but the topic isn’t a joke, it’s a real issue.

Otherwise the battery can under or overcharge, and cause premature battery failure. Older batteries become sulfated with time and require a higher charging rate. So unless the DME is notified a new battery is installed, it will often overcharge, and damage the new battery […]

10Jan, 2018

BMW Engine Camshaft Bolts Problem – Repair and Correction

By | January 10th, 2018|Categories: Case Studies|Tags: , , , , , , , , , , , , , , , , , , , , |Comments Off on BMW Engine Camshaft Bolts Problem – Repair and Correction

What Happens
Certain late model BMWs can experience a problem with the camshaft sprocket retention bolts failing.
This is a design defect, and well know in professional BMW service circles.
You can see on the photo below, that VANOS (variable valve timing system) to intake camshaft bolts have broken and backed out, 3 of the 4 bolts are damaged and loose.

BMW said “in very rare cases the bolts holding the variable camshaft timing (Vanos) unit housing may become loose or, in extreme cases, break.” In such cases, the driver would be alerted by […]