The 2000 S70 represents the final year of Volvo's P80 platform—a solid chassis undermined by transmission fragility and age-related electrical gremlins. The naturally-aspirated 2.4L is more durable than the turbo variant, but both share critical weak points in the drivetrain and cooling systems.
AW50-42LE Automatic Transmission Failure
Common · high severity
Typical onset: 120,000-180,000 mi
Symptoms: Harsh 2-3 shift or slipping between gears under load, Transmission overheating with burnt ATF smell, No movement in drive or reverse after warmup, Check engine light with transmission-related codes
Fix: Internal clutch pack failure or valve body issues require rebuild or replacement. Rebuild runs 12-16 hours labor; used/reman units cut that to 8-10 hours but add core charges. External oil cooler lines and cooler itself often need replacement simultaneously.
Estimated cost: $2,200-3,800
PCV System Breather Box Oil Sludge Clog
Common · medium severity
Typical onset: 80,000-140,000 mi
Symptoms: Oil leaks from valve cover gasket and rear main seal, Rough idle with excessive crankcase pressure, Whistling or hissing from engine bay, Oil consumption increases noticeably
Fix: Breather box on firewall side clogs with sludge, causing crankcase pressure that blows out seals. Must remove intake manifold to access; 4-5 hours labor includes cleaning or replacing breather assembly, replacing flame trap, and addressing blown gaskets. Preventive maintenance every 60k miles avoids catastrophic seal failure.
Estimated cost: $450-850
Engine Wiring Harness Degradation
Common · medium severity
Typical onset: 150,000+ mi
Symptoms: Intermittent no-start or stalling when engine is hot, Multiple random misfires across cylinders, Check engine light with oxygen sensor or camshaft position sensor codes, Corroded or melted connectors near exhaust manifold
Fix: Insulation on engine harness becomes brittle from heat cycling; shorts and opens create chaos. Full harness replacement is 6-8 hours; individual circuit repair possible but often Band-Aid. Turbo models worse due to higher underhood temps.
Estimated cost: $600-1,400
Turbo Wastegate Failure (2.3L Turbo Only)
Occasional · medium severity
Typical onset: 100,000-160,000 mi
Symptoms: Loss of boost pressure and power above 3000 RPM, Rattling noise from turbo at idle that disappears under throttle, Overboost codes or limp mode activation, Excessive black smoke under acceleration
Fix: Wastegate actuator rod seizes or diaphragm ruptures. Turbo replacement or rebuild required; 5-7 hours labor includes removing heat shields and downpipe. Aftermarket turbos available but require ECU tuning for proper boost control.
Estimated cost: $1,200-2,100
Front Lower Control Arm Bushings
Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps from front suspension, Steering wanders or pulls during braking, Inner tire wear on front tires, Visible cracks or separation in rubber bushings
Fix: Both front lower arms need replacement as bushings aren't serviceable separately on these. 2.5-3 hours labor per side; alignment mandatory afterward. OE-spec Volvo or Lemförder parts essential—cheap aftermarket bushings fail in 20k miles.
Estimated cost: $550-900
Ignition Switch Failure
Occasional · high severity
Symptoms: Key won't turn or feels stuck in ignition cylinder, Intermittent no-crank with all dash lights working, Accessories stay powered after key removal, Steering wheel lock fails to disengage
Fix: Ignition switch housing cracks internally or contacts corrode. Switch assembly replacement is 1.5-2 hours including steering column trim removal. Recall 00V215000 addressed some units but not all—check VIN eligibility. Carry spare key; failure often progressive.
Estimated cost: $280-450
ETM (Electronic Throttle Module) Failure
Occasional · high severity
Typical onset: 120,000-180,000 mi
Symptoms: Limp mode with severely reduced power (20 mph max), Check engine light with throttle position sensor codes, Idle surges or hunts between 500-1500 RPM, Throttle response dies completely—engine won't rev
Fix: Throttle body motor or position sensor fails inside sealed ETM unit. Replacement is 1.5 hours labor; no adjustment needed as it self-calibrates. Used units are gamble—rebuild services exist but take 2-3 weeks turnaround. Keep car drivable by disconnecting battery to reset limp mode temporarily.
Estimated cost: $450-850
Owner tips
Change transmission fluid every 30k miles with Aisin ATF-WS or Valvoline MaxLife—brown fluid means you're already behind
Service PCV breather box at 60k intervals; pull flame trap and soak in gasoline, replace if crumbling
Inspect engine harness connectors annually for corrosion, especially near turbo and oxygen sensors
Use Volvo-spec coolant only (blue-green); Dex-Cool and universal coolants corrode aluminum heads
Replace timing belt at 70k or 7 years; interference engine destroys valves if belt snaps
Buy the 2.4L non-turbo with service records showing religious transmission maintenance; avoid the turbo unless you can budget $3k for inevitable transmission work—it's a when, not if.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: DIN/Euro size battery; some models may use Group 48
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Every control module on the 1998-2000 Volvo S70 — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Anti-lock Brake System Control Module (ABS)2.0 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Engine bay, left front corner near battery, integrated with hydraulic unit
🔧 VIDA or advanced aftermarket scanner
⚠️ Module integrated with hydraulic pump assembly; brake bleeding required after replacement; TRACS traction control integrated
📍 Driver's side dashboard, behind lower kick panel, left of steering column
🔧 VIDA/DiCE
⚠️ Primary body control and gateway module; controls lighting, wipers, central locking, power windows; VIN and full vehicle configuration required on replacement; critical module
📍 Dashboard, behind instrument panel glass, secured with four screws
🔧 VIDA/DiCE
⚠️ Mileage stored in cluster; VIN and odometer programming required on replacement to prevent mileage tampering
Audio System Control Module (Radio)0.7 hr R&Rrelearn only +0.1 hr▸ programming details
📍 Center console, DIN slot behind trim panel, standard or premium audio
🔧 Radio code entry via front panel
⚠️ Anti-theft radio code required after battery disconnect or replacement; code on card in owner's manual or retrievable via VIN
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER · 07E023000
2007-03-29
CERTAIN CARDONE MASTER CYLINDERS WITH PART NUMBERS 10-2925, 10-2987, 10-2987MZA, 10-3083, 11-3015, 11-3042, 11-3044, 11-3045, 11-3047, 11-3064, AND 11-3156, AND WITH DATE CODES LOWER THAN DCA7078 SOLD AS REPLACEMENT EQUIPMENT FOR USE ON THE VEHICLES LISTED ABOVE. THE SEAL ON MASTER CYLINDER CAN FAIL AND LEAK BRAKE FLUID.
Consequence: LOSS OF BRAKE FLUID CAN RESULT IN POOR BRAKING PERFORMANCE, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: CARDONE WILL NOTIFY OWNERS AND OFFER TO REPURCHASE ANY DEFECTIVE MASTER CYLINDERS. THE RECALL BEGAN DURING APRIL 2007. OWNERS CAN CONTACT CARDONE AT 1-800-777-4780.
VEHICLE SPEED CONTROL · 06V441000
2006-11-15 · EA05021
ON CERTAIN PASSENGER VEHICLES, A COMBINATION OF THROTTLE POSITIONING SENSOR IRREGULARITIES, A DIRTY THROTTLE HOUSING, AND/OR INEFFICIENT SOFTWARE CALIBRATION MAY CAUSE A WARNING LAMP TO LIGHT AND THE SUBSEQUENT ONSET OF LIMP HOME MODES.
Consequence: THIS RESULTED IN A HIGH NUMBER OF VEHICLES GOING INTO THE LIMP HOME MODE WITHOUT NEED.
Remedy: DEALERS WILL INSTALL THE CURRENT SOFTWARE UPGRADE ONTO THE INVOLVED VEHICLES. THE RECALL BEGAN ON DECEMBER 29, 2006. OWNERS MAY CONTACT VOLVO AT 1-800-458-1552.
EXTERIOR LIGHTING:HEADLIGHTS:SWITCH · 04V504000
2004-10-21 · RQ04004
ON CERTAIN PASSENGER AND SPORT UTILITY VEHICLES, OVER AN EXTENDED PERIOD OF TIME, THE HEADLIGHT SWITCH MAY CEASE TO FUNCTION.
Consequence: THE HEAD LIGHTS MAY NOT OPERATE PROPERLY WHICH COULD RESULT IN INTERMITTENT OR NO HEADLIGHT FUNCTION. THIS COULD IMPAIR A DRIVER'S VISIBILITY, INCREASING THE RISK OF A CRASH.
Remedy: ON VEHICLES WITH AN ORIGINAL OEM SWITCH, DEALERS WILL REPLACE THE HEADLIGHT SWITCH. ALL OTHER VEHICLES WILL BE INSPECTED TO DETERMINE IF THE SWITCH HAS EEN DAMAGED AND REPLACE ONLY IF NECESSARY. THE RECALL BEGAN ON JANUARY 24, 2005. OWNERS SHOULD CONTACT VOLVO AT 1-800-458-1552.
EXTERIOR LIGHTING:TURN SIGNAL · 00V405000
2000-12-06 · PE00031
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THERE COULD BE INADEQUATE CONTACT BETWEEN THE BULB AND SOCKET WHICH COULD CAUSE THE FRONT TURN SIGNAL NOT TO FUNCTION AS DESIGNED.
Consequence: THIS WOULD FAIL TO WARN AN APPROACHING DRIVER THAT THE VEHICLE IS TURNING AND COULD LEAD TO A CRASH.
Remedy: DEALERS WILL REPLACE THE LEFT AND RIGHT FRONT TURN SIGNAL BULB AND SOCKET.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2000 Volvo S70 2.3L I5 Turbo and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.