“Rat Race” – Mercedes Wiring Harness Repair – Damaged By Rodents

AMC Tech Case - Rat Race This Mercedes E350 came in with a no start condition, radio inoperative, and a host of other electrical issues. We weren't the first to work on this vehicle, it was clear that many hands had been in here before, and apparently given up without success. Cause The highly skilled AMC Service Techs Kyle and Scotty collaborated, were able to trace the fault, after a good day of diagnostics, and interior disassembly, to a electrical wiring and fiber optic cable issue, located inside one of the wire chases. As these chases run from the front [...]

By | July 20th, 2018|Case Studies|Comments Off on “Rat Race” – Mercedes Wiring Harness Repair – Damaged By Rodents

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 Mercedes service, after 33 years, we know these [...]

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

Mercedes Benz Intake Manifold Problems – And The Fix To Prevent It!

Happens Many owners of late model Mercedes-Benz cars equipped with 3.0 and 3.5l V6 engines (M272 or M273) have been experiencing similar problems in performance lately, which include poor idle, loss of power, and a check engine light with the code P2006 (and sometimes others). The problem is caused by an air flap inside this Mercedes-Benz intake manifold breaking, causing unexpected low acceleration depending on the orientation of the flap that has broken.  To thoroughly understand what is going on here, let's review what the system is doing and why variable-intake-runner intake manifolds are becoming so popular with many modern cars. Design The intake [...]

By | January 22nd, 2018|Case Studies|Comments Off on Mercedes Benz Intake Manifold Problems – And The Fix To Prevent It!

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 that the real reason for [...]

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

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 a check-engine warning light. Power to the [...]

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

Volvo Differential Rebuilding Service – Out of Our Area? Send Your Unit To Us

The Problem The rear differential design has been in use in the Volvo world since the 2008 to at least the 2014 model year, so it’s something to consider if you own a vehicle in that range. We service a tremendous amount of Volvo XC70s, and have seen the problem largely on those models, but have read reports of it being an issue on the S80 as well. Now the earlier Volvos had their own set of differential or bevel gear problems, which you can read about on our blog at Volvo AOC problems. What We Do We mentioned that [...]

By | January 4th, 2018|Case Studies|Comments Off on Volvo Differential Rebuilding Service – Out of Our Area? Send Your Unit To Us

Vintage Mercedes Project – Or Reviving A Cold War Warrior

Vintage Mercedes Project - Cold War Warrior Mercedes 300TE The vintage Mercedes project car is on the road tonight, Jared, one of our Service Advisors is doing the overnight road test. Just one year before the Berlin war fell, this Mercedes rolled new out of the factory. I'm a Cold War fan, student and history buff, having grown up in that era, so this project had a special meaning to me, one of the last Mercedes to roll out when "West Germany" was still a country. Everything is done except for the engine oil leak reseal, will be [...]

By | December 7th, 2017|Case Studies|Comments Off on Vintage Mercedes Project – Or Reviving A Cold War Warrior

AMC Service Tip – Replacing Stuck or Blind Hole Bearing Races

Problem Removing Stuck Bearing Races Tapered roller bearings are commonly found in wheel bearings, transmission, differentials, and other automotive systems. They consist of two parts, the bearing cone with the roller bearing, and a “race”, which is the highly polished and hardened surface on which the bearing rides. The race is pressed into the part or casting and the roller bearing installed on top of it. So let’s say you have a bearing race (transmission, wheel, differential or other) in a “blind” hole that you need to replace. By “blind” we mean you can’t access it from the back of the [...]

By | November 22nd, 2017|Case Studies|Comments Off on AMC Service Tip – Replacing Stuck or Blind Hole Bearing Races

Volvo and Land Rover Differential Problems – Out Of Town – We’ll Repair – Send To Us

The Problem This 2010 Volvo XC70 came to us with about 96K miles, and a loud noise coming from the rear of the vehicle. The noise was noticeable at low and moderate speeds while driving, and sounded like a loud whine or hum depending on vehicle speed. Initially this noise sounded like a defective wheel bearing but on further exam we determined the noise was in fact coming from the rear differential, the gear system that transmits force from the transmission to the rear wheels. We've seen this before, both on the later model Volvo and the Land Rover LR2 vehicles, and [...]

By | April 11th, 2017|Case Studies|Comments Off on Volvo and Land Rover Differential Problems – Out Of Town – We’ll Repair – Send To Us